Home / 14,020.38-21,008.58-8,815.32

Finding the Fourth Proportional to 14,020.38, 21,008.58 and 8,815.32

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Solution

The fourth proportional to 14,020.38, 21,008.58 and 8,815.32 is: 13,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.38 : 21,008.58 = 8,815.32 : x
  2. Step 2: Convert to fraction form
    14,020.38/21,008.58 = 8,815.32/x
  3. Step 3: Cross multiply
    14,020.38x = 21,008.58 × 8,815.32
  4. Step 4: Simplify right side
    14,020.38x = 185,197,355.45
  5. Step 5: Solve for x
    x = 185,197,355.45/14,020.38
  6. Step 6: Final answer
    x = 13,209.15

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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.