Home / 9,350.80-12,904.20-5,159.44

Finding the Fourth Proportional to 9,350.80, 12,904.20 and 5,159.44

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Solution

The fourth proportional to 9,350.80, 12,904.20 and 5,159.44 is: 7,120.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350.80 : 12,904.20 = 5,159.44 : x
  2. Step 2: Convert to fraction form
    9,350.80/12,904.20 = 5,159.44/x
  3. Step 3: Cross multiply
    9,350.80x = 12,904.20 × 5,159.44
  4. Step 4: Simplify right side
    9,350.80x = 66,578,445.65
  5. Step 5: Solve for x
    x = 66,578,445.65/9,350.80
  6. Step 6: Final answer
    x = 7,120.08

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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.