Home / 11,153.76-15,390.45-6,437.13

Finding the Fourth Proportional to 11,153.76, 15,390.45 and 6,437.13

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Solution

The fourth proportional to 11,153.76, 15,390.45 and 6,437.13 is: 8,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.76 : 15,390.45 = 6,437.13 : x
  2. Step 2: Convert to fraction form
    11,153.76/15,390.45 = 6,437.13/x
  3. Step 3: Cross multiply
    11,153.76x = 15,390.45 × 6,437.13
  4. Step 4: Simplify right side
    11,153.76x = 99,070,327.41
  5. Step 5: Solve for x
    x = 99,070,327.41/11,153.76
  6. Step 6: Final answer
    x = 8,882.24

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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.