Home / 6,521.10-9,781.65-5,426.70

Finding the Fourth Proportional to 6,521.10, 9,781.65 and 5,426.70

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Solution

The fourth proportional to 6,521.10, 9,781.65 and 5,426.70 is: 8,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521.10 : 9,781.65 = 5,426.70 : x
  2. Step 2: Convert to fraction form
    6,521.10/9,781.65 = 5,426.70/x
  3. Step 3: Cross multiply
    6,521.10x = 9,781.65 × 5,426.70
  4. Step 4: Simplify right side
    6,521.10x = 53,082,080.06
  5. Step 5: Solve for x
    x = 53,082,080.06/6,521.10
  6. Step 6: Final answer
    x = 8,140.05

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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.