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Finding the Fourth Proportional to 7,236.55, 10,854.76 and 5,784.90

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Solution

The fourth proportional to 7,236.55, 10,854.76 and 5,784.90 is: 8,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.55 : 10,854.76 = 5,784.90 : x
  2. Step 2: Convert to fraction form
    7,236.55/10,854.76 = 5,784.90/x
  3. Step 3: Cross multiply
    7,236.55x = 10,854.76 × 5,784.90
  4. Step 4: Simplify right side
    7,236.55x = 62,793,701.12
  5. Step 5: Solve for x
    x = 62,793,701.12/7,236.55
  6. Step 6: Final answer
    x = 8,677.30

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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.