Home / 13,113.38-18,096.24-7,145.10

Finding the Fourth Proportional to 13,113.38, 18,096.24 and 7,145.10

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Solution

The fourth proportional to 13,113.38, 18,096.24 and 7,145.10 is: 9,860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.38 : 18,096.24 = 7,145.10 : x
  2. Step 2: Convert to fraction form
    13,113.38/18,096.24 = 7,145.10/x
  3. Step 3: Cross multiply
    13,113.38x = 18,096.24 × 7,145.10
  4. Step 4: Simplify right side
    13,113.38x = 129,299,444.42
  5. Step 5: Solve for x
    x = 129,299,444.42/13,113.38
  6. Step 6: Final answer
    x = 9,860.11

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Half scale
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Double scale
Find fourth proportional to 13,114.38, 18,097.62 and 7,146.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.