Home / 14,165.12-21,239.76-12,566.36

Finding the Fourth Proportional to 14,165.12, 21,239.76 and 12,566.36

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Solution

The fourth proportional to 14,165.12, 21,239.76 and 12,566.36 is: 18,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.12 : 21,239.76 = 12,566.36 : x
  2. Step 2: Convert to fraction form
    14,165.12/21,239.76 = 12,566.36/x
  3. Step 3: Cross multiply
    14,165.12x = 21,239.76 × 12,566.36
  4. Step 4: Simplify right side
    14,165.12x = 266,906,470.47
  5. Step 5: Solve for x
    x = 266,906,470.47/14,165.12
  6. Step 6: Final answer
    x = 18,842.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.