Home / 8,618.85-11,895.30-5,263.61

Finding the Fourth Proportional to 8,618.85, 11,895.30 and 5,263.61

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Solution

The fourth proportional to 8,618.85, 11,895.30 and 5,263.61 is: 7,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.85 : 11,895.30 = 5,263.61 : x
  2. Step 2: Convert to fraction form
    8,618.85/11,895.30 = 5,263.61/x
  3. Step 3: Cross multiply
    8,618.85x = 11,895.30 × 5,263.61
  4. Step 4: Simplify right side
    8,618.85x = 62,612,134.24
  5. Step 5: Solve for x
    x = 62,612,134.24/8,618.85
  6. Step 6: Final answer
    x = 7,264.56

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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.