Home / 8,881.72-12,254.52-6,519.76

Finding the Fourth Proportional to 8,881.72, 12,254.52 and 6,519.76

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Solution

The fourth proportional to 8,881.72, 12,254.52 and 6,519.76 is: 8,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.72 : 12,254.52 = 6,519.76 : x
  2. Step 2: Convert to fraction form
    8,881.72/12,254.52 = 6,519.76/x
  3. Step 3: Cross multiply
    8,881.72x = 12,254.52 × 6,519.76
  4. Step 4: Simplify right side
    8,881.72x = 79,896,529.32
  5. Step 5: Solve for x
    x = 79,896,529.32/8,881.72
  6. Step 6: Final answer
    x = 8,995.61

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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.