Home / 13,153.46-18,152.17-7,185.23

Finding the Fourth Proportional to 13,153.46, 18,152.17 and 7,185.23

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Solution

The fourth proportional to 13,153.46, 18,152.17 and 7,185.23 is: 9,915.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.46 : 18,152.17 = 7,185.23 : x
  2. Step 2: Convert to fraction form
    13,153.46/18,152.17 = 7,185.23/x
  3. Step 3: Cross multiply
    13,153.46x = 18,152.17 × 7,185.23
  4. Step 4: Simplify right side
    13,153.46x = 130,427,475.80
  5. Step 5: Solve for x
    x = 130,427,475.80/13,153.46
  6. Step 6: Final answer
    x = 9,915.83

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Half scale
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Double scale
Find fourth proportional to 13,154.46, 18,153.55 and 7,186.23
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.