Home / 14,251.60-19,666.92-8,664.40

Finding the Fourth Proportional to 14,251.60, 19,666.92 and 8,664.40

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Solution

The fourth proportional to 14,251.60, 19,666.92 and 8,664.40 is: 11,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.60 : 19,666.92 = 8,664.40 : x
  2. Step 2: Convert to fraction form
    14,251.60/19,666.92 = 8,664.40/x
  3. Step 3: Cross multiply
    14,251.60x = 19,666.92 × 8,664.40
  4. Step 4: Simplify right side
    14,251.60x = 170,402,061.65
  5. Step 5: Solve for x
    x = 170,402,061.65/14,251.60
  6. Step 6: Final answer
    x = 11,956.70

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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.