Home / 8,528.34-11,778.96-5,690.76

Finding the Fourth Proportional to 8,528.34, 11,778.96 and 5,690.76

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Solution

The fourth proportional to 8,528.34, 11,778.96 and 5,690.76 is: 7,859.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.34 : 11,778.96 = 5,690.76 : x
  2. Step 2: Convert to fraction form
    8,528.34/11,778.96 = 5,690.76/x
  3. Step 3: Cross multiply
    8,528.34x = 11,778.96 × 5,690.76
  4. Step 4: Simplify right side
    8,528.34x = 67,031,234.41
  5. Step 5: Solve for x
    x = 67,031,234.41/8,528.34
  6. Step 6: Final answer
    x = 7,859.82

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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.