Home / 12,503.80-17,256.75-7,198.50

Finding the Fourth Proportional to 12,503.80, 17,256.75 and 7,198.50

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Solution

The fourth proportional to 12,503.80, 17,256.75 and 7,198.50 is: 9,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.80 : 17,256.75 = 7,198.50 : x
  2. Step 2: Convert to fraction form
    12,503.80/17,256.75 = 7,198.50/x
  3. Step 3: Cross multiply
    12,503.80x = 17,256.75 × 7,198.50
  4. Step 4: Simplify right side
    12,503.80x = 124,222,752.59
  5. Step 5: Solve for x
    x = 124,222,752.59/12,503.80
  6. Step 6: Final answer
    x = 9,934.80

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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.