Home / 19,437.87-29,132.46-8,331.56

Finding the Fourth Proportional to 19,437.87, 29,132.46 and 8,331.56

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Solution

The fourth proportional to 19,437.87, 29,132.46 and 8,331.56 is: 12,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.87 : 29,132.46 = 8,331.56 : x
  2. Step 2: Convert to fraction form
    19,437.87/29,132.46 = 8,331.56/x
  3. Step 3: Cross multiply
    19,437.87x = 29,132.46 × 8,331.56
  4. Step 4: Simplify right side
    19,437.87x = 242,718,802.02
  5. Step 5: Solve for x
    x = 242,718,802.02/19,437.87
  6. Step 6: Final answer
    x = 12,486.90

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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.