Home / 11,125.32-15,354.68-6,345.28

Finding the Fourth Proportional to 11,125.32, 15,354.68 and 6,345.28

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Solution

The fourth proportional to 11,125.32, 15,354.68 and 6,345.28 is: 8,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.32 : 15,354.68 = 6,345.28 : x
  2. Step 2: Convert to fraction form
    11,125.32/15,354.68 = 6,345.28/x
  3. Step 3: Cross multiply
    11,125.32x = 15,354.68 × 6,345.28
  4. Step 4: Simplify right side
    11,125.32x = 97,429,743.91
  5. Step 5: Solve for x
    x = 97,429,743.91/11,125.32
  6. Step 6: Final answer
    x = 8,757.48

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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.