Home / 14,585.91-20,122.25-8,920.92

Finding the Fourth Proportional to 14,585.91, 20,122.25 and 8,920.92

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Solution

The fourth proportional to 14,585.91, 20,122.25 and 8,920.92 is: 12,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.91 : 20,122.25 = 8,920.92 : x
  2. Step 2: Convert to fraction form
    14,585.91/20,122.25 = 8,920.92/x
  3. Step 3: Cross multiply
    14,585.91x = 20,122.25 × 8,920.92
  4. Step 4: Simplify right side
    14,585.91x = 179,508,937.87
  5. Step 5: Solve for x
    x = 179,508,937.87/14,585.91
  6. Step 6: Final answer
    x = 12,307.01

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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.