Home / 8,403.55-11,591.10-7,654.50

Finding the Fourth Proportional to 8,403.55, 11,591.10 and 7,654.50

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Solution

The fourth proportional to 8,403.55, 11,591.10 and 7,654.50 is: 10,557.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.55 : 11,591.10 = 7,654.50 : x
  2. Step 2: Convert to fraction form
    8,403.55/11,591.10 = 7,654.50/x
  3. Step 3: Cross multiply
    8,403.55x = 11,591.10 × 7,654.50
  4. Step 4: Simplify right side
    8,403.55x = 88,724,074.95
  5. Step 5: Solve for x
    x = 88,724,074.95/8,403.55
  6. Step 6: Final answer
    x = 10,557.93

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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.