Home / 12,728.13-17,544.38-10,070.52

Finding the Fourth Proportional to 12,728.13, 17,544.38 and 10,070.52

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Solution

The fourth proportional to 12,728.13, 17,544.38 and 10,070.52 is: 13,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.13 : 17,544.38 = 10,070.52 : x
  2. Step 2: Convert to fraction form
    12,728.13/17,544.38 = 10,070.52/x
  3. Step 3: Cross multiply
    12,728.13x = 17,544.38 × 10,070.52
  4. Step 4: Simplify right side
    12,728.13x = 176,680,979.33
  5. Step 5: Solve for x
    x = 176,680,979.33/12,728.13
  6. Step 6: Final answer
    x = 13,881.14

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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.