Home / 14,585.72-20,134.39-9,872.74

Finding the Fourth Proportional to 14,585.72, 20,134.39 and 9,872.74

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Solution

The fourth proportional to 14,585.72, 20,134.39 and 9,872.74 is: 13,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.72 : 20,134.39 = 9,872.74 : x
  2. Step 2: Convert to fraction form
    14,585.72/20,134.39 = 9,872.74/x
  3. Step 3: Cross multiply
    14,585.72x = 20,134.39 × 9,872.74
  4. Step 4: Simplify right side
    14,585.72x = 198,781,496.86
  5. Step 5: Solve for x
    x = 198,781,496.86/14,585.72
  6. Step 6: Final answer
    x = 13,628.50

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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.