Home / 12,740.16-17,579.52-7,150.08

Finding the Fourth Proportional to 12,740.16, 17,579.52 and 7,150.08

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Solution

The fourth proportional to 12,740.16, 17,579.52 and 7,150.08 is: 9,866.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.16 : 17,579.52 = 7,150.08 : x
  2. Step 2: Convert to fraction form
    12,740.16/17,579.52 = 7,150.08/x
  3. Step 3: Cross multiply
    12,740.16x = 17,579.52 × 7,150.08
  4. Step 4: Simplify right side
    12,740.16x = 125,694,974.36
  5. Step 5: Solve for x
    x = 125,694,974.36/12,740.16
  6. Step 6: Final answer
    x = 9,866.04

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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.