Home / 18,364.16-27,508.48-12,422.40

Finding the Fourth Proportional to 18,364.16, 27,508.48 and 12,422.40

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Solution

The fourth proportional to 18,364.16, 27,508.48 and 12,422.40 is: 18,608.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.16 : 27,508.48 = 12,422.40 : x
  2. Step 2: Convert to fraction form
    18,364.16/27,508.48 = 12,422.40/x
  3. Step 3: Cross multiply
    18,364.16x = 27,508.48 × 12,422.40
  4. Step 4: Simplify right side
    18,364.16x = 341,721,341.95
  5. Step 5: Solve for x
    x = 341,721,341.95/18,364.16
  6. Step 6: Final answer
    x = 18,608.06

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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.