Home / 10,887.12-15,024.38-8,156.82

Finding the Fourth Proportional to 10,887.12, 15,024.38 and 8,156.82

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Solution

The fourth proportional to 10,887.12, 15,024.38 and 8,156.82 is: 11,256.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.12 : 15,024.38 = 8,156.82 : x
  2. Step 2: Convert to fraction form
    10,887.12/15,024.38 = 8,156.82/x
  3. Step 3: Cross multiply
    10,887.12x = 15,024.38 × 8,156.82
  4. Step 4: Simplify right side
    10,887.12x = 122,551,122.49
  5. Step 5: Solve for x
    x = 122,551,122.49/10,887.12
  6. Step 6: Final answer
    x = 11,256.52

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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.