Home / 10,961.77-15,123.66-6,708.40

Finding the Fourth Proportional to 10,961.77, 15,123.66 and 6,708.40

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Solution

The fourth proportional to 10,961.77, 15,123.66 and 6,708.40 is: 9,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.77 : 15,123.66 = 6,708.40 : x
  2. Step 2: Convert to fraction form
    10,961.77/15,123.66 = 6,708.40/x
  3. Step 3: Cross multiply
    10,961.77x = 15,123.66 × 6,708.40
  4. Step 4: Simplify right side
    10,961.77x = 101,455,560.74
  5. Step 5: Solve for x
    x = 101,455,560.74/10,961.77
  6. Step 6: Final answer
    x = 9,255.40

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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.