Home / 14,210.38-21,318.65-5,445.30

Finding the Fourth Proportional to 14,210.38, 21,318.65 and 5,445.30

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Solution

The fourth proportional to 14,210.38, 21,318.65 and 5,445.30 is: 8,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.38 : 21,318.65 = 5,445.30 : x
  2. Step 2: Convert to fraction form
    14,210.38/21,318.65 = 5,445.30/x
  3. Step 3: Cross multiply
    14,210.38x = 21,318.65 × 5,445.30
  4. Step 4: Simplify right side
    14,210.38x = 116,086,444.85
  5. Step 5: Solve for x
    x = 116,086,444.85/14,210.38
  6. Step 6: Final answer
    x = 8,169.13

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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.