Home / 12,934.39-17,849.22-7,192.20

Finding the Fourth Proportional to 12,934.39, 17,849.22 and 7,192.20

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Solution

The fourth proportional to 12,934.39, 17,849.22 and 7,192.20 is: 9,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.39 : 17,849.22 = 7,192.20 : x
  2. Step 2: Convert to fraction form
    12,934.39/17,849.22 = 7,192.20/x
  3. Step 3: Cross multiply
    12,934.39x = 17,849.22 × 7,192.20
  4. Step 4: Simplify right side
    12,934.39x = 128,375,106.63
  5. Step 5: Solve for x
    x = 128,375,106.63/12,934.39
  6. Step 6: Final answer
    x = 9,925.10

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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.