Home / 8,904.15-12,287.70-5,125.94

Finding the Fourth Proportional to 8,904.15, 12,287.70 and 5,125.94

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Solution

The fourth proportional to 8,904.15, 12,287.70 and 5,125.94 is: 7,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.15 : 12,287.70 = 5,125.94 : x
  2. Step 2: Convert to fraction form
    8,904.15/12,287.70 = 5,125.94/x
  3. Step 3: Cross multiply
    8,904.15x = 12,287.70 × 5,125.94
  4. Step 4: Simplify right side
    8,904.15x = 62,986,012.94
  5. Step 5: Solve for x
    x = 62,986,012.94/8,904.15
  6. Step 6: Final answer
    x = 7,073.78

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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.