Home / 18,916.18-28,373.19-7,230.58

Finding the Fourth Proportional to 18,916.18, 28,373.19 and 7,230.58

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Solution

The fourth proportional to 18,916.18, 28,373.19 and 7,230.58 is: 10,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.18 : 28,373.19 = 7,230.58 : x
  2. Step 2: Convert to fraction form
    18,916.18/28,373.19 = 7,230.58/x
  3. Step 3: Cross multiply
    18,916.18x = 28,373.19 × 7,230.58
  4. Step 4: Simplify right side
    18,916.18x = 205,154,620.15
  5. Step 5: Solve for x
    x = 205,154,620.15/18,916.18
  6. Step 6: Final answer
    x = 10,845.46

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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.