Home / 19,422.13-26,787.35-12,618.34

Finding the Fourth Proportional to 19,422.13, 26,787.35 and 12,618.34

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Solution

The fourth proportional to 19,422.13, 26,787.35 and 12,618.34 is: 17,403.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.13 : 26,787.35 = 12,618.34 : x
  2. Step 2: Convert to fraction form
    19,422.13/26,787.35 = 12,618.34/x
  3. Step 3: Cross multiply
    19,422.13x = 26,787.35 × 12,618.34
  4. Step 4: Simplify right side
    19,422.13x = 338,011,890.00
  5. Step 5: Solve for x
    x = 338,011,890.00/19,422.13
  6. Step 6: Final answer
    x = 17,403.44

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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.