Home / 10,643.85-16,045.49-9,930.24

Finding the Fourth Proportional to 10,643.85, 16,045.49 and 9,930.24

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Solution

The fourth proportional to 10,643.85, 16,045.49 and 9,930.24 is: 14,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.85 : 16,045.49 = 9,930.24 : x
  2. Step 2: Convert to fraction form
    10,643.85/16,045.49 = 9,930.24/x
  3. Step 3: Cross multiply
    10,643.85x = 16,045.49 × 9,930.24
  4. Step 4: Simplify right side
    10,643.85x = 159,335,591.44
  5. Step 5: Solve for x
    x = 159,335,591.44/10,643.85
  6. Step 6: Final answer
    x = 14,969.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.