Home / 13,750.92-18,977.88-11,508.84

Finding the Fourth Proportional to 13,750.92, 18,977.88 and 11,508.84

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Solution

The fourth proportional to 13,750.92, 18,977.88 and 11,508.84 is: 15,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.92 : 18,977.88 = 11,508.84 : x
  2. Step 2: Convert to fraction form
    13,750.92/18,977.88 = 11,508.84/x
  3. Step 3: Cross multiply
    13,750.92x = 18,977.88 × 11,508.84
  4. Step 4: Simplify right side
    13,750.92x = 218,413,384.46
  5. Step 5: Solve for x
    x = 218,413,384.46/13,750.92
  6. Step 6: Final answer
    x = 15,883.55

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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.