Home / 10,972.08-15,143.76-10,086.48

Finding the Fourth Proportional to 10,972.08, 15,143.76 and 10,086.48

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Solution

The fourth proportional to 10,972.08, 15,143.76 and 10,086.48 is: 13,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.08 : 15,143.76 = 10,086.48 : x
  2. Step 2: Convert to fraction form
    10,972.08/15,143.76 = 10,086.48/x
  3. Step 3: Cross multiply
    10,972.08x = 15,143.76 × 10,086.48
  4. Step 4: Simplify right side
    10,972.08x = 152,747,232.36
  5. Step 5: Solve for x
    x = 152,747,232.36/10,972.08
  6. Step 6: Final answer
    x = 13,921.45

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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.