Home / 11,508.05-15,881.02-6,472.28

Finding the Fourth Proportional to 11,508.05, 15,881.02 and 6,472.28

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Solution

The fourth proportional to 11,508.05, 15,881.02 and 6,472.28 is: 8,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.05 : 15,881.02 = 6,472.28 : x
  2. Step 2: Convert to fraction form
    11,508.05/15,881.02 = 6,472.28/x
  3. Step 3: Cross multiply
    11,508.05x = 15,881.02 × 6,472.28
  4. Step 4: Simplify right side
    11,508.05x = 102,786,408.13
  5. Step 5: Solve for x
    x = 102,786,408.13/11,508.05
  6. Step 6: Final answer
    x = 8,931.70

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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.