Home / 12,877.22-19,312.70-3,517.28

Finding the Fourth Proportional to 12,877.22, 19,312.70 and 3,517.28

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Solution

The fourth proportional to 12,877.22, 19,312.70 and 3,517.28 is: 5,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.22 : 19,312.70 = 3,517.28 : x
  2. Step 2: Convert to fraction form
    12,877.22/19,312.70 = 3,517.28/x
  3. Step 3: Cross multiply
    12,877.22x = 19,312.70 × 3,517.28
  4. Step 4: Simplify right side
    12,877.22x = 67,928,176.77
  5. Step 5: Solve for x
    x = 67,928,176.77/12,877.22
  6. Step 6: Final answer
    x = 5,275.07

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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.