Home / 11,137.92-16,718.28-8,699.76

Finding the Fourth Proportional to 11,137.92, 16,718.28 and 8,699.76

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Solution

The fourth proportional to 11,137.92, 16,718.28 and 8,699.76 is: 13,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.92 : 16,718.28 = 8,699.76 : x
  2. Step 2: Convert to fraction form
    11,137.92/16,718.28 = 8,699.76/x
  3. Step 3: Cross multiply
    11,137.92x = 16,718.28 × 8,699.76
  4. Step 4: Simplify right side
    11,137.92x = 145,445,023.61
  5. Step 5: Solve for x
    x = 145,445,023.61/11,137.92
  6. Step 6: Final answer
    x = 13,058.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.