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Finding the Fourth Proportional to 7,871.52, 11,793.65 and 5,527.07

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Solution

The fourth proportional to 7,871.52, 11,793.65 and 5,527.07 is: 8,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.52 : 11,793.65 = 5,527.07 : x
  2. Step 2: Convert to fraction form
    7,871.52/11,793.65 = 5,527.07/x
  3. Step 3: Cross multiply
    7,871.52x = 11,793.65 × 5,527.07
  4. Step 4: Simplify right side
    7,871.52x = 65,184,242.50
  5. Step 5: Solve for x
    x = 65,184,242.50/7,871.52
  6. Step 6: Final answer
    x = 8,281.02

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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.