Home / 10,097.28-15,147.84-3,172.16

Finding the Fourth Proportional to 10,097.28, 15,147.84 and 3,172.16

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Solution

The fourth proportional to 10,097.28, 15,147.84 and 3,172.16 is: 4,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,097.28 : 15,147.84 = 3,172.16 : x
  2. Step 2: Convert to fraction form
    10,097.28/15,147.84 = 3,172.16/x
  3. Step 3: Cross multiply
    10,097.28x = 15,147.84 × 3,172.16
  4. Step 4: Simplify right side
    10,097.28x = 48,051,372.13
  5. Step 5: Solve for x
    x = 48,051,372.13/10,097.28
  6. Step 6: Final answer
    x = 4,758.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.