Home / 18,761.10-28,143.14-6,281.19

Finding the Fourth Proportional to 18,761.10, 28,143.14 and 6,281.19

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Solution

The fourth proportional to 18,761.10, 28,143.14 and 6,281.19 is: 9,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761.10 : 28,143.14 = 6,281.19 : x
  2. Step 2: Convert to fraction form
    18,761.10/28,143.14 = 6,281.19/x
  3. Step 3: Cross multiply
    18,761.10x = 28,143.14 × 6,281.19
  4. Step 4: Simplify right side
    18,761.10x = 176,772,409.54
  5. Step 5: Solve for x
    x = 176,772,409.54/18,761.10
  6. Step 6: Final answer
    x = 9,422.28

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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.