Home / 8,508.80-11,738.56-6,145.76

Finding the Fourth Proportional to 8,508.80, 11,738.56 and 6,145.76

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Solution

The fourth proportional to 8,508.80, 11,738.56 and 6,145.76 is: 8,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.80 : 11,738.56 = 6,145.76 : x
  2. Step 2: Convert to fraction form
    8,508.80/11,738.56 = 6,145.76/x
  3. Step 3: Cross multiply
    8,508.80x = 11,738.56 × 6,145.76
  4. Step 4: Simplify right side
    8,508.80x = 72,142,372.51
  5. Step 5: Solve for x
    x = 72,142,372.51/8,508.80
  6. Step 6: Final answer
    x = 8,478.56

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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.