Home / 8,899.57-12,282.32-5,122.87

Finding the Fourth Proportional to 8,899.57, 12,282.32 and 5,122.87

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Solution

The fourth proportional to 8,899.57, 12,282.32 and 5,122.87 is: 7,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.57 : 12,282.32 = 5,122.87 : x
  2. Step 2: Convert to fraction form
    8,899.57/12,282.32 = 5,122.87/x
  3. Step 3: Cross multiply
    8,899.57x = 12,282.32 × 5,122.87
  4. Step 4: Simplify right side
    8,899.57x = 62,920,728.66
  5. Step 5: Solve for x
    x = 62,920,728.66/8,899.57
  6. Step 6: Final answer
    x = 7,070.09

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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.