Home / 8,600.52-12,908.70-5,320.02

Finding the Fourth Proportional to 8,600.52, 12,908.70 and 5,320.02

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Solution

The fourth proportional to 8,600.52, 12,908.70 and 5,320.02 is: 7,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.52 : 12,908.70 = 5,320.02 : x
  2. Step 2: Convert to fraction form
    8,600.52/12,908.70 = 5,320.02/x
  3. Step 3: Cross multiply
    8,600.52x = 12,908.70 × 5,320.02
  4. Step 4: Simplify right side
    8,600.52x = 68,674,542.17
  5. Step 5: Solve for x
    x = 68,674,542.17/8,600.52
  6. Step 6: Final answer
    x = 7,984.93

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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.