Home / 8,039.20-12,077.33-7,707.06

Finding the Fourth Proportional to 8,039.20, 12,077.33 and 7,707.06

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Solution

The fourth proportional to 8,039.20, 12,077.33 and 7,707.06 is: 11,578.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.20 : 12,077.33 = 7,707.06 : x
  2. Step 2: Convert to fraction form
    8,039.20/12,077.33 = 7,707.06/x
  3. Step 3: Cross multiply
    8,039.20x = 12,077.33 × 7,707.06
  4. Step 4: Simplify right side
    8,039.20x = 93,080,706.95
  5. Step 5: Solve for x
    x = 93,080,706.95/8,039.20
  6. Step 6: Final answer
    x = 11,578.35

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1.5x scale

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.