Home / 6,412.15-9,605.67-5,715.55

Finding the Fourth Proportional to 6,412.15, 9,605.67 and 5,715.55

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Solution

The fourth proportional to 6,412.15, 9,605.67 and 5,715.55 is: 8,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412.15 : 9,605.67 = 5,715.55 : x
  2. Step 2: Convert to fraction form
    6,412.15/9,605.67 = 5,715.55/x
  3. Step 3: Cross multiply
    6,412.15x = 9,605.67 × 5,715.55
  4. Step 4: Simplify right side
    6,412.15x = 54,901,687.17
  5. Step 5: Solve for x
    x = 54,901,687.17/6,412.15
  6. Step 6: Final answer
    x = 8,562.13

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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.