Home / 10,914.40-15,061.47-6,672.57

Finding the Fourth Proportional to 10,914.40, 15,061.47 and 6,672.57

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Solution

The fourth proportional to 10,914.40, 15,061.47 and 6,672.57 is: 9,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.40 : 15,061.47 = 6,672.57 : x
  2. Step 2: Convert to fraction form
    10,914.40/15,061.47 = 6,672.57/x
  3. Step 3: Cross multiply
    10,914.40x = 15,061.47 × 6,672.57
  4. Step 4: Simplify right side
    10,914.40x = 100,498,712.88
  5. Step 5: Solve for x
    x = 100,498,712.88/10,914.40
  6. Step 6: Final answer
    x = 9,207.90

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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.