Home / 10,283.28-14,180.99-8,689.95

Finding the Fourth Proportional to 10,283.28, 14,180.99 and 8,689.95

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Solution

The fourth proportional to 10,283.28, 14,180.99 and 8,689.95 is: 11,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,283.28 : 14,180.99 = 8,689.95 : x
  2. Step 2: Convert to fraction form
    10,283.28/14,180.99 = 8,689.95/x
  3. Step 3: Cross multiply
    10,283.28x = 14,180.99 × 8,689.95
  4. Step 4: Simplify right side
    10,283.28x = 123,232,094.05
  5. Step 5: Solve for x
    x = 123,232,094.05/10,283.28
  6. Step 6: Final answer
    x = 11,983.73

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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.