Home / 10,146.72-15,208.88-6,635.28

Finding the Fourth Proportional to 10,146.72, 15,208.88 and 6,635.28

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Solution

The fourth proportional to 10,146.72, 15,208.88 and 6,635.28 is: 9,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.72 : 15,208.88 = 6,635.28 : x
  2. Step 2: Convert to fraction form
    10,146.72/15,208.88 = 6,635.28/x
  3. Step 3: Cross multiply
    10,146.72x = 15,208.88 × 6,635.28
  4. Step 4: Simplify right side
    10,146.72x = 100,915,177.29
  5. Step 5: Solve for x
    x = 100,915,177.29/10,146.72
  6. Step 6: Final answer
    x = 9,945.60

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1.5x scale

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.