Home / 8,129.20-11,218.20-4,592.40

Finding the Fourth Proportional to 8,129.20, 11,218.20 and 4,592.40

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Solution

The fourth proportional to 8,129.20, 11,218.20 and 4,592.40 is: 6,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.20 : 11,218.20 = 4,592.40 : x
  2. Step 2: Convert to fraction form
    8,129.20/11,218.20 = 4,592.40/x
  3. Step 3: Cross multiply
    8,129.20x = 11,218.20 × 4,592.40
  4. Step 4: Simplify right side
    8,129.20x = 51,518,461.68
  5. Step 5: Solve for x
    x = 51,518,461.68/8,129.20
  6. Step 6: Final answer
    x = 6,337.46

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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.