Home / 12,712.71-17,544.58-7,049.23

Finding the Fourth Proportional to 12,712.71, 17,544.58 and 7,049.23

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Solution

The fourth proportional to 12,712.71, 17,544.58 and 7,049.23 is: 9,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.71 : 17,544.58 = 7,049.23 : x
  2. Step 2: Convert to fraction form
    12,712.71/17,544.58 = 7,049.23/x
  3. Step 3: Cross multiply
    12,712.71x = 17,544.58 × 7,049.23
  4. Step 4: Simplify right side
    12,712.71x = 123,675,779.67
  5. Step 5: Solve for x
    x = 123,675,779.67/12,712.71
  6. Step 6: Final answer
    x = 9,728.51

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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.