Home / 12,862.60-19,302.13-6,943.61

Finding the Fourth Proportional to 12,862.60, 19,302.13 and 6,943.61

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Solution

The fourth proportional to 12,862.60, 19,302.13 and 6,943.61 is: 10,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.60 : 19,302.13 = 6,943.61 : x
  2. Step 2: Convert to fraction form
    12,862.60/19,302.13 = 6,943.61/x
  3. Step 3: Cross multiply
    12,862.60x = 19,302.13 × 6,943.61
  4. Step 4: Simplify right side
    12,862.60x = 134,026,406.39
  5. Step 5: Solve for x
    x = 134,026,406.39/12,862.60
  6. Step 6: Final answer
    x = 10,419.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.