Home / 12,445.52-18,669.64-3,680.46

Finding the Fourth Proportional to 12,445.52, 18,669.64 and 3,680.46

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Solution

The fourth proportional to 12,445.52, 18,669.64 and 3,680.46 is: 5,521.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.52 : 18,669.64 = 3,680.46 : x
  2. Step 2: Convert to fraction form
    12,445.52/18,669.64 = 3,680.46/x
  3. Step 3: Cross multiply
    12,445.52x = 18,669.64 × 3,680.46
  4. Step 4: Simplify right side
    12,445.52x = 68,712,863.23
  5. Step 5: Solve for x
    x = 68,712,863.23/12,445.52
  6. Step 6: Final answer
    x = 5,521.09

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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.