Home / 8,753.36-12,077.76-5,217.74

Finding the Fourth Proportional to 8,753.36, 12,077.76 and 5,217.74

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Solution

The fourth proportional to 8,753.36, 12,077.76 and 5,217.74 is: 7,199.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.36 : 12,077.76 = 5,217.74 : x
  2. Step 2: Convert to fraction form
    8,753.36/12,077.76 = 5,217.74/x
  3. Step 3: Cross multiply
    8,753.36x = 12,077.76 × 5,217.74
  4. Step 4: Simplify right side
    8,753.36x = 63,018,611.46
  5. Step 5: Solve for x
    x = 63,018,611.46/8,753.36
  6. Step 6: Final answer
    x = 7,199.36

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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.