Home / 18,943.56-26,140.98-10,445.28

Finding the Fourth Proportional to 18,943.56, 26,140.98 and 10,445.28

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Solution

The fourth proportional to 18,943.56, 26,140.98 and 10,445.28 is: 14,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.56 : 26,140.98 = 10,445.28 : x
  2. Step 2: Convert to fraction form
    18,943.56/26,140.98 = 10,445.28/x
  3. Step 3: Cross multiply
    18,943.56x = 26,140.98 × 10,445.28
  4. Step 4: Simplify right side
    18,943.56x = 273,049,855.57
  5. Step 5: Solve for x
    x = 273,049,855.57/18,943.56
  6. Step 6: Final answer
    x = 14,413.86

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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.