Home / 7,747.12-10,680.72-6,159.04

Finding the Fourth Proportional to 7,747.12, 10,680.72 and 6,159.04

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Solution

The fourth proportional to 7,747.12, 10,680.72 and 6,159.04 is: 8,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.12 : 10,680.72 = 6,159.04 : x
  2. Step 2: Convert to fraction form
    7,747.12/10,680.72 = 6,159.04/x
  3. Step 3: Cross multiply
    7,747.12x = 10,680.72 × 6,159.04
  4. Step 4: Simplify right side
    7,747.12x = 65,782,981.71
  5. Step 5: Solve for x
    x = 65,782,981.71/7,747.12
  6. Step 6: Final answer
    x = 8,491.28

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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.