Home / 11,187.60-15,437.16-6,472.32

Finding the Fourth Proportional to 11,187.60, 15,437.16 and 6,472.32

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Solution

The fourth proportional to 11,187.60, 15,437.16 and 6,472.32 is: 8,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.60 : 15,437.16 = 6,472.32 : x
  2. Step 2: Convert to fraction form
    11,187.60/15,437.16 = 6,472.32/x
  3. Step 3: Cross multiply
    11,187.60x = 15,437.16 × 6,472.32
  4. Step 4: Simplify right side
    11,187.60x = 99,914,239.41
  5. Step 5: Solve for x
    x = 99,914,239.41/11,187.60
  6. Step 6: Final answer
    x = 8,930.80

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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.