Home / 18,988.29-26,197.43-11,027.61

Finding the Fourth Proportional to 18,988.29, 26,197.43 and 11,027.61

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Solution

The fourth proportional to 18,988.29, 26,197.43 and 11,027.61 is: 15,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.29 : 26,197.43 = 11,027.61 : x
  2. Step 2: Convert to fraction form
    18,988.29/26,197.43 = 11,027.61/x
  3. Step 3: Cross multiply
    18,988.29x = 26,197.43 × 11,027.61
  4. Step 4: Simplify right side
    18,988.29x = 288,894,985.90
  5. Step 5: Solve for x
    x = 288,894,985.90/18,988.29
  6. Step 6: Final answer
    x = 15,214.38

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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.