Home / 8,617.12-11,888.58-4,891.12

Finding the Fourth Proportional to 8,617.12, 11,888.58 and 4,891.12

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Solution

The fourth proportional to 8,617.12, 11,888.58 and 4,891.12 is: 6,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.12 : 11,888.58 = 4,891.12 : x
  2. Step 2: Convert to fraction form
    8,617.12/11,888.58 = 4,891.12/x
  3. Step 3: Cross multiply
    8,617.12x = 11,888.58 × 4,891.12
  4. Step 4: Simplify right side
    8,617.12x = 58,148,471.41
  5. Step 5: Solve for x
    x = 58,148,471.41/8,617.12
  6. Step 6: Final answer
    x = 6,748.02

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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.