Home / 12,520.73-17,283.02-7,744.36

Finding the Fourth Proportional to 12,520.73, 17,283.02 and 7,744.36

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Solution

The fourth proportional to 12,520.73, 17,283.02 and 7,744.36 is: 10,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.73 : 17,283.02 = 7,744.36 : x
  2. Step 2: Convert to fraction form
    12,520.73/17,283.02 = 7,744.36/x
  3. Step 3: Cross multiply
    12,520.73x = 17,283.02 × 7,744.36
  4. Step 4: Simplify right side
    12,520.73x = 133,845,922.81
  5. Step 5: Solve for x
    x = 133,845,922.81/12,520.73
  6. Step 6: Final answer
    x = 10,689.95

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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.