Home / 13,124.38-18,144.04-12,573.58

Finding the Fourth Proportional to 13,124.38, 18,144.04 and 12,573.58

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Solution

The fourth proportional to 13,124.38, 18,144.04 and 12,573.58 is: 17,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.38 : 18,144.04 = 12,573.58 : x
  2. Step 2: Convert to fraction form
    13,124.38/18,144.04 = 12,573.58/x
  3. Step 3: Cross multiply
    13,124.38x = 18,144.04 × 12,573.58
  4. Step 4: Simplify right side
    13,124.38x = 228,135,538.46
  5. Step 5: Solve for x
    x = 228,135,538.46/13,124.38
  6. Step 6: Final answer
    x = 17,382.58

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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.