Home / 14,005.30-21,024.15-8,086.90

Finding the Fourth Proportional to 14,005.30, 21,024.15 and 8,086.90

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Solution

The fourth proportional to 14,005.30, 21,024.15 and 8,086.90 is: 12,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.30 : 21,024.15 = 8,086.90 : x
  2. Step 2: Convert to fraction form
    14,005.30/21,024.15 = 8,086.90/x
  3. Step 3: Cross multiply
    14,005.30x = 21,024.15 × 8,086.90
  4. Step 4: Simplify right side
    14,005.30x = 170,020,198.64
  5. Step 5: Solve for x
    x = 170,020,198.64/14,005.30
  6. Step 6: Final answer
    x = 12,139.70

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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.