Home / 10,954.07-15,118.01-7,180.41

Finding the Fourth Proportional to 10,954.07, 15,118.01 and 7,180.41

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Solution

The fourth proportional to 10,954.07, 15,118.01 and 7,180.41 is: 9,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.07 : 15,118.01 = 7,180.41 : x
  2. Step 2: Convert to fraction form
    10,954.07/15,118.01 = 7,180.41/x
  3. Step 3: Cross multiply
    10,954.07x = 15,118.01 × 7,180.41
  4. Step 4: Simplify right side
    10,954.07x = 108,553,557.90
  5. Step 5: Solve for x
    x = 108,553,557.90/10,954.07
  6. Step 6: Final answer
    x = 9,909.88

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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.