Home / 12,518.93-17,269.13-11,250.47

Finding the Fourth Proportional to 12,518.93, 17,269.13 and 11,250.47

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Solution

The fourth proportional to 12,518.93, 17,269.13 and 11,250.47 is: 15,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.93 : 17,269.13 = 11,250.47 : x
  2. Step 2: Convert to fraction form
    12,518.93/17,269.13 = 11,250.47/x
  3. Step 3: Cross multiply
    12,518.93x = 17,269.13 × 11,250.47
  4. Step 4: Simplify right side
    12,518.93x = 194,285,772.74
  5. Step 5: Solve for x
    x = 194,285,772.74/12,518.93
  6. Step 6: Final answer
    x = 15,519.36

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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.