Home / 8,750.34-13,130.85-3,487.86

Finding the Fourth Proportional to 8,750.34, 13,130.85 and 3,487.86

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Solution

The fourth proportional to 8,750.34, 13,130.85 and 3,487.86 is: 5,233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.34 : 13,130.85 = 3,487.86 : x
  2. Step 2: Convert to fraction form
    8,750.34/13,130.85 = 3,487.86/x
  3. Step 3: Cross multiply
    8,750.34x = 13,130.85 × 3,487.86
  4. Step 4: Simplify right side
    8,750.34x = 45,798,566.48
  5. Step 5: Solve for x
    x = 45,798,566.48/8,750.34
  6. Step 6: Final answer
    x = 5,233.92

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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.