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Finding the Fourth Proportional to 8,555.55, 12,837.77 and 6,474.93

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Solution

The fourth proportional to 8,555.55, 12,837.77 and 6,474.93 is: 9,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.55 : 12,837.77 = 6,474.93 : x
  2. Step 2: Convert to fraction form
    8,555.55/12,837.77 = 6,474.93/x
  3. Step 3: Cross multiply
    8,555.55x = 12,837.77 × 6,474.93
  4. Step 4: Simplify right side
    8,555.55x = 83,123,662.11
  5. Step 5: Solve for x
    x = 83,123,662.11/8,555.55
  6. Step 6: Final answer
    x = 9,715.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.