Home / 10,159.28-15,240.12-4,312.64

Finding the Fourth Proportional to 10,159.28, 15,240.12 and 4,312.64

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Solution

The fourth proportional to 10,159.28, 15,240.12 and 4,312.64 is: 6,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.28 : 15,240.12 = 4,312.64 : x
  2. Step 2: Convert to fraction form
    10,159.28/15,240.12 = 4,312.64/x
  3. Step 3: Cross multiply
    10,159.28x = 15,240.12 × 4,312.64
  4. Step 4: Simplify right side
    10,159.28x = 65,725,151.12
  5. Step 5: Solve for x
    x = 65,725,151.12/10,159.28
  6. Step 6: Final answer
    x = 6,469.47

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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.