Home / 10,971.92-15,139.52-6,254.48

Finding the Fourth Proportional to 10,971.92, 15,139.52 and 6,254.48

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Solution

The fourth proportional to 10,971.92, 15,139.52 and 6,254.48 is: 8,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.92 : 15,139.52 = 6,254.48 : x
  2. Step 2: Convert to fraction form
    10,971.92/15,139.52 = 6,254.48/x
  3. Step 3: Cross multiply
    10,971.92x = 15,139.52 × 6,254.48
  4. Step 4: Simplify right side
    10,971.92x = 94,689,825.05
  5. Step 5: Solve for x
    x = 94,689,825.05/10,971.92
  6. Step 6: Final answer
    x = 8,630.20

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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.