Home / 12,725.51-17,561.19-7,061.12

Finding the Fourth Proportional to 12,725.51, 17,561.19 and 7,061.12

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Solution

The fourth proportional to 12,725.51, 17,561.19 and 7,061.12 is: 9,744.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.51 : 17,561.19 = 7,061.12 : x
  2. Step 2: Convert to fraction form
    12,725.51/17,561.19 = 7,061.12/x
  3. Step 3: Cross multiply
    12,725.51x = 17,561.19 × 7,061.12
  4. Step 4: Simplify right side
    12,725.51x = 124,001,733.52
  5. Step 5: Solve for x
    x = 124,001,733.52/12,725.51
  6. Step 6: Final answer
    x = 9,744.34

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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.