Home / 12,442.72-18,669.12-12,246.16

Finding the Fourth Proportional to 12,442.72, 18,669.12 and 12,246.16

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Solution

The fourth proportional to 12,442.72, 18,669.12 and 12,246.16 is: 18,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.72 : 18,669.12 = 12,246.16 : x
  2. Step 2: Convert to fraction form
    12,442.72/18,669.12 = 12,246.16/x
  3. Step 3: Cross multiply
    12,442.72x = 18,669.12 × 12,246.16
  4. Step 4: Simplify right side
    12,442.72x = 228,625,030.58
  5. Step 5: Solve for x
    x = 228,625,030.58/12,442.72
  6. Step 6: Final answer
    x = 18,374.20

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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.