Home / 7,966.31-10,989.20-4,983.77

Finding the Fourth Proportional to 7,966.31, 10,989.20 and 4,983.77

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Solution

The fourth proportional to 7,966.31, 10,989.20 and 4,983.77 is: 6,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.31 : 10,989.20 = 4,983.77 : x
  2. Step 2: Convert to fraction form
    7,966.31/10,989.20 = 4,983.77/x
  3. Step 3: Cross multiply
    7,966.31x = 10,989.20 × 4,983.77
  4. Step 4: Simplify right side
    7,966.31x = 54,767,685.22
  5. Step 5: Solve for x
    x = 54,767,685.22/7,966.31
  6. Step 6: Final answer
    x = 6,874.92

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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.