Home / 18,947.40-26,149.77-10,883.55

Finding the Fourth Proportional to 18,947.40, 26,149.77 and 10,883.55

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Solution

The fourth proportional to 18,947.40, 26,149.77 and 10,883.55 is: 15,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.40 : 26,149.77 = 10,883.55 : x
  2. Step 2: Convert to fraction form
    18,947.40/26,149.77 = 10,883.55/x
  3. Step 3: Cross multiply
    18,947.40x = 26,149.77 × 10,883.55
  4. Step 4: Simplify right side
    18,947.40x = 284,602,329.28
  5. Step 5: Solve for x
    x = 284,602,329.28/18,947.40
  6. Step 6: Final answer
    x = 15,020.65

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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.