Home / 12,927.30-17,841.61-7,894.44

Finding the Fourth Proportional to 12,927.30, 17,841.61 and 7,894.44

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Solution

The fourth proportional to 12,927.30, 17,841.61 and 7,894.44 is: 10,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.30 : 17,841.61 = 7,894.44 : x
  2. Step 2: Convert to fraction form
    12,927.30/17,841.61 = 7,894.44/x
  3. Step 3: Cross multiply
    12,927.30x = 17,841.61 × 7,894.44
  4. Step 4: Simplify right side
    12,927.30x = 140,849,480.18
  5. Step 5: Solve for x
    x = 140,849,480.18/12,927.30
  6. Step 6: Final answer
    x = 10,895.51

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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.