Home / 18,689.42-28,025.76-5,537.18

Finding the Fourth Proportional to 18,689.42, 28,025.76 and 5,537.18

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Solution

The fourth proportional to 18,689.42, 28,025.76 and 5,537.18 is: 8,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.42 : 28,025.76 = 5,537.18 : x
  2. Step 2: Convert to fraction form
    18,689.42/28,025.76 = 5,537.18/x
  3. Step 3: Cross multiply
    18,689.42x = 28,025.76 × 5,537.18
  4. Step 4: Simplify right side
    18,689.42x = 155,183,677.76
  5. Step 5: Solve for x
    x = 155,183,677.76/18,689.42
  6. Step 6: Final answer
    x = 8,303.29

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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.