Home / 8,557.62-11,803.77-6,438.66

Finding the Fourth Proportional to 8,557.62, 11,803.77 and 6,438.66

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Solution

The fourth proportional to 8,557.62, 11,803.77 and 6,438.66 is: 8,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.62 : 11,803.77 = 6,438.66 : x
  2. Step 2: Convert to fraction form
    8,557.62/11,803.77 = 6,438.66/x
  3. Step 3: Cross multiply
    8,557.62x = 11,803.77 × 6,438.66
  4. Step 4: Simplify right side
    8,557.62x = 76,000,461.75
  5. Step 5: Solve for x
    x = 76,000,461.75/8,557.62
  6. Step 6: Final answer
    x = 8,881.03

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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.