Home / 9,115.47-12,590.24-6,474.33

Finding the Fourth Proportional to 9,115.47, 12,590.24 and 6,474.33

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Solution

The fourth proportional to 9,115.47, 12,590.24 and 6,474.33 is: 8,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.47 : 12,590.24 = 6,474.33 : x
  2. Step 2: Convert to fraction form
    9,115.47/12,590.24 = 6,474.33/x
  3. Step 3: Cross multiply
    9,115.47x = 12,590.24 × 6,474.33
  4. Step 4: Simplify right side
    9,115.47x = 81,513,336.17
  5. Step 5: Solve for x
    x = 81,513,336.17/9,115.47
  6. Step 6: Final answer
    x = 8,942.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.