Home / 17,715.56-24,439.64-10,987.70

Finding the Fourth Proportional to 17,715.56, 24,439.64 and 10,987.70

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Solution

The fourth proportional to 17,715.56, 24,439.64 and 10,987.70 is: 15,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715.56 : 24,439.64 = 10,987.70 : x
  2. Step 2: Convert to fraction form
    17,715.56/24,439.64 = 10,987.70/x
  3. Step 3: Cross multiply
    17,715.56x = 24,439.64 × 10,987.70
  4. Step 4: Simplify right side
    17,715.56x = 268,535,255.29
  5. Step 5: Solve for x
    x = 268,535,255.29/17,715.56
  6. Step 6: Final answer
    x = 15,158.16

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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.