Home / 8,060.79-12,088.76-3,129.33

Finding the Fourth Proportional to 8,060.79, 12,088.76 and 3,129.33

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Solution

The fourth proportional to 8,060.79, 12,088.76 and 3,129.33 is: 4,693.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,060.79 : 12,088.76 = 3,129.33 : x
  2. Step 2: Convert to fraction form
    8,060.79/12,088.76 = 3,129.33/x
  3. Step 3: Cross multiply
    8,060.79x = 12,088.76 × 3,129.33
  4. Step 4: Simplify right side
    8,060.79x = 37,829,703.68
  5. Step 5: Solve for x
    x = 37,829,703.68/8,060.79
  6. Step 6: Final answer
    x = 4,693.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.