Home / 10,877.76-15,010.92-6,161.40

Finding the Fourth Proportional to 10,877.76, 15,010.92 and 6,161.40

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Solution

The fourth proportional to 10,877.76, 15,010.92 and 6,161.40 is: 8,502.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.76 : 15,010.92 = 6,161.40 : x
  2. Step 2: Convert to fraction form
    10,877.76/15,010.92 = 6,161.40/x
  3. Step 3: Cross multiply
    10,877.76x = 15,010.92 × 6,161.40
  4. Step 4: Simplify right side
    10,877.76x = 92,488,282.49
  5. Step 5: Solve for x
    x = 92,488,282.49/10,877.76
  6. Step 6: Final answer
    x = 8,502.51

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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.