Home / 14,724.62-20,320.18-8,437

Finding the Fourth Proportional to 14,724.62, 20,320.18 and 8,437

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Solution

The fourth proportional to 14,724.62, 20,320.18 and 8,437 is: 11,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,724.62 : 20,320.18 = 8,437 : x
  2. Step 2: Convert to fraction form
    14,724.62/20,320.18 = 8,437/x
  3. Step 3: Cross multiply
    14,724.62x = 20,320.18 × 8,437
  4. Step 4: Simplify right side
    14,724.62x = 171,441,358.66
  5. Step 5: Solve for x
    x = 171,441,358.66/14,724.62
  6. Step 6: Final answer
    x = 11,643.18

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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.