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Finding the Fourth Proportional to 8,888.58, 12,266.01 and 4,909.61

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Solution

The fourth proportional to 8,888.58, 12,266.01 and 4,909.61 is: 6,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.58 : 12,266.01 = 4,909.61 : x
  2. Step 2: Convert to fraction form
    8,888.58/12,266.01 = 4,909.61/x
  3. Step 3: Cross multiply
    8,888.58x = 12,266.01 × 4,909.61
  4. Step 4: Simplify right side
    8,888.58x = 60,221,336.09
  5. Step 5: Solve for x
    x = 60,221,336.09/8,888.58
  6. Step 6: Final answer
    x = 6,775.13

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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.