Home / 10,112.46-15,148.17-5,720.64

Finding the Fourth Proportional to 10,112.46, 15,148.17 and 5,720.64

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Solution

The fourth proportional to 10,112.46, 15,148.17 and 5,720.64 is: 8,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.46 : 15,148.17 = 5,720.64 : x
  2. Step 2: Convert to fraction form
    10,112.46/15,148.17 = 5,720.64/x
  3. Step 3: Cross multiply
    10,112.46x = 15,148.17 × 5,720.64
  4. Step 4: Simplify right side
    10,112.46x = 86,657,227.23
  5. Step 5: Solve for x
    x = 86,657,227.23/10,112.46
  6. Step 6: Final answer
    x = 8,569.35

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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.