Home / 14,155.20-19,535.27-8,490.17

Finding the Fourth Proportional to 14,155.20, 19,535.27 and 8,490.17

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Solution

The fourth proportional to 14,155.20, 19,535.27 and 8,490.17 is: 11,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.20 : 19,535.27 = 8,490.17 : x
  2. Step 2: Convert to fraction form
    14,155.20/19,535.27 = 8,490.17/x
  3. Step 3: Cross multiply
    14,155.20x = 19,535.27 × 8,490.17
  4. Step 4: Simplify right side
    14,155.20x = 165,857,769.68
  5. Step 5: Solve for x
    x = 165,857,769.68/14,155.20
  6. Step 6: Final answer
    x = 11,717.09

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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.