Home / 10,990.62-15,156.24-10,079.97

Finding the Fourth Proportional to 10,990.62, 15,156.24 and 10,079.97

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Solution

The fourth proportional to 10,990.62, 15,156.24 and 10,079.97 is: 13,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.62 : 15,156.24 = 10,079.97 : x
  2. Step 2: Convert to fraction form
    10,990.62/15,156.24 = 10,079.97/x
  3. Step 3: Cross multiply
    10,990.62x = 15,156.24 × 10,079.97
  4. Step 4: Simplify right side
    10,990.62x = 152,774,444.51
  5. Step 5: Solve for x
    x = 152,774,444.51/10,990.62
  6. Step 6: Final answer
    x = 13,900.44

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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.