Home / 9,767.20-14,650.80-5,159.20

Finding the Fourth Proportional to 9,767.20, 14,650.80 and 5,159.20

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Solution

The fourth proportional to 9,767.20, 14,650.80 and 5,159.20 is: 7,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.20 : 14,650.80 = 5,159.20 : x
  2. Step 2: Convert to fraction form
    9,767.20/14,650.80 = 5,159.20/x
  3. Step 3: Cross multiply
    9,767.20x = 14,650.80 × 5,159.20
  4. Step 4: Simplify right side
    9,767.20x = 75,586,407.36
  5. Step 5: Solve for x
    x = 75,586,407.36/9,767.20
  6. Step 6: Final answer
    x = 7,738.80

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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.