Home / 12,458.20-18,668.85-10,252.70

Finding the Fourth Proportional to 12,458.20, 18,668.85 and 10,252.70

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Solution

The fourth proportional to 12,458.20, 18,668.85 and 10,252.70 is: 15,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.20 : 18,668.85 = 10,252.70 : x
  2. Step 2: Convert to fraction form
    12,458.20/18,668.85 = 10,252.70/x
  3. Step 3: Cross multiply
    12,458.20x = 18,668.85 × 10,252.70
  4. Step 4: Simplify right side
    12,458.20x = 191,406,071.72
  5. Step 5: Solve for x
    x = 191,406,071.72/12,458.20
  6. Step 6: Final answer
    x = 15,363.86

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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.