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Finding the Fourth Proportional to 9,068.83, 12,505.80 and 8,539.70

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Solution

The fourth proportional to 9,068.83, 12,505.80 and 8,539.70 is: 11,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,068.83 : 12,505.80 = 8,539.70 : x
  2. Step 2: Convert to fraction form
    9,068.83/12,505.80 = 8,539.70/x
  3. Step 3: Cross multiply
    9,068.83x = 12,505.80 × 8,539.70
  4. Step 4: Simplify right side
    9,068.83x = 106,795,780.26
  5. Step 5: Solve for x
    x = 106,795,780.26/9,068.83
  6. Step 6: Final answer
    x = 11,776.14

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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.