Home / 10,155.06-15,237.12-6,456.30

Finding the Fourth Proportional to 10,155.06, 15,237.12 and 6,456.30

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Solution

The fourth proportional to 10,155.06, 15,237.12 and 6,456.30 is: 9,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.06 : 15,237.12 = 6,456.30 : x
  2. Step 2: Convert to fraction form
    10,155.06/15,237.12 = 6,456.30/x
  3. Step 3: Cross multiply
    10,155.06x = 15,237.12 × 6,456.30
  4. Step 4: Simplify right side
    10,155.06x = 98,375,417.86
  5. Step 5: Solve for x
    x = 98,375,417.86/10,155.06
  6. Step 6: Final answer
    x = 9,687.33

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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.