Home / 11,189.47-15,440.27-6,472.87

Finding the Fourth Proportional to 11,189.47, 15,440.27 and 6,472.87

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Solution

The fourth proportional to 11,189.47, 15,440.27 and 6,472.87 is: 8,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.47 : 15,440.27 = 6,472.87 : x
  2. Step 2: Convert to fraction form
    11,189.47/15,440.27 = 6,472.87/x
  3. Step 3: Cross multiply
    11,189.47x = 15,440.27 × 6,472.87
  4. Step 4: Simplify right side
    11,189.47x = 99,942,860.47
  5. Step 5: Solve for x
    x = 99,942,860.47/11,189.47
  6. Step 6: Final answer
    x = 8,931.87

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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.