Home / 10,912.20-15,058.17-6,436.14

Finding the Fourth Proportional to 10,912.20, 15,058.17 and 6,436.14

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Solution

The fourth proportional to 10,912.20, 15,058.17 and 6,436.14 is: 8,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.20 : 15,058.17 = 6,436.14 : x
  2. Step 2: Convert to fraction form
    10,912.20/15,058.17 = 6,436.14/x
  3. Step 3: Cross multiply
    10,912.20x = 15,058.17 × 6,436.14
  4. Step 4: Simplify right side
    10,912.20x = 96,916,490.26
  5. Step 5: Solve for x
    x = 96,916,490.26/10,912.20
  6. Step 6: Final answer
    x = 8,881.48

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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.