Home / 8,139.17-11,232.87-4,952.69

Finding the Fourth Proportional to 8,139.17, 11,232.87 and 4,952.69

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Solution

The fourth proportional to 8,139.17, 11,232.87 and 4,952.69 is: 6,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.17 : 11,232.87 = 4,952.69 : x
  2. Step 2: Convert to fraction form
    8,139.17/11,232.87 = 4,952.69/x
  3. Step 3: Cross multiply
    8,139.17x = 11,232.87 × 4,952.69
  4. Step 4: Simplify right side
    8,139.17x = 55,632,866.76
  5. Step 5: Solve for x
    x = 55,632,866.76/8,139.17
  6. Step 6: Final answer
    x = 6,835.21

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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.