Home / 15,324.66-21,146.67-9,354.15

Finding the Fourth Proportional to 15,324.66, 21,146.67 and 9,354.15

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Solution

The fourth proportional to 15,324.66, 21,146.67 and 9,354.15 is: 12,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.66 : 21,146.67 = 9,354.15 : x
  2. Step 2: Convert to fraction form
    15,324.66/21,146.67 = 9,354.15/x
  3. Step 3: Cross multiply
    15,324.66x = 21,146.67 × 9,354.15
  4. Step 4: Simplify right side
    15,324.66x = 197,809,123.18
  5. Step 5: Solve for x
    x = 197,809,123.18/15,324.66
  6. Step 6: Final answer
    x = 12,907.90

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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.