Home / 8,121.61-11,207.15-4,764.07

Finding the Fourth Proportional to 8,121.61, 11,207.15 and 4,764.07

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Solution

The fourth proportional to 8,121.61, 11,207.15 and 4,764.07 is: 6,574.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.61 : 11,207.15 = 4,764.07 : x
  2. Step 2: Convert to fraction form
    8,121.61/11,207.15 = 4,764.07/x
  3. Step 3: Cross multiply
    8,121.61x = 11,207.15 × 4,764.07
  4. Step 4: Simplify right side
    8,121.61x = 53,391,623.28
  5. Step 5: Solve for x
    x = 53,391,623.28/8,121.61
  6. Step 6: Final answer
    x = 6,574.02

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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.