Home / 14,008.30-21,012.45-13,911.10

Finding the Fourth Proportional to 14,008.30, 21,012.45 and 13,911.10

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Solution

The fourth proportional to 14,008.30, 21,012.45 and 13,911.10 is: 20,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.30 : 21,012.45 = 13,911.10 : x
  2. Step 2: Convert to fraction form
    14,008.30/21,012.45 = 13,911.10/x
  3. Step 3: Cross multiply
    14,008.30x = 21,012.45 × 13,911.10
  4. Step 4: Simplify right side
    14,008.30x = 292,306,293.20
  5. Step 5: Solve for x
    x = 292,306,293.20/14,008.30
  6. Step 6: Final answer
    x = 20,866.65

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Similar ratio
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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.