Home / 15,442.12-23,165.64-5,580.40

Finding the Fourth Proportional to 15,442.12, 23,165.64 and 5,580.40

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Solution

The fourth proportional to 15,442.12, 23,165.64 and 5,580.40 is: 8,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.12 : 23,165.64 = 5,580.40 : x
  2. Step 2: Convert to fraction form
    15,442.12/23,165.64 = 5,580.40/x
  3. Step 3: Cross multiply
    15,442.12x = 23,165.64 × 5,580.40
  4. Step 4: Simplify right side
    15,442.12x = 129,273,537.46
  5. Step 5: Solve for x
    x = 129,273,537.46/15,442.12
  6. Step 6: Final answer
    x = 8,371.49

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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.