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Finding the Fourth Proportional to 14,646.80, 21,937.80 and 11,349.20

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Solution

The fourth proportional to 14,646.80, 21,937.80 and 11,349.20 is: 16,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.80 : 21,937.80 = 11,349.20 : x
  2. Step 2: Convert to fraction form
    14,646.80/21,937.80 = 11,349.20/x
  3. Step 3: Cross multiply
    14,646.80x = 21,937.80 × 11,349.20
  4. Step 4: Simplify right side
    14,646.80x = 248,976,479.76
  5. Step 5: Solve for x
    x = 248,976,479.76/14,646.80
  6. Step 6: Final answer
    x = 16,998.69

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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.