Home / 12,688.97-17,510.33-7,023.73

Finding the Fourth Proportional to 12,688.97, 17,510.33 and 7,023.73

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Solution

The fourth proportional to 12,688.97, 17,510.33 and 7,023.73 is: 9,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.97 : 17,510.33 = 7,023.73 : x
  2. Step 2: Convert to fraction form
    12,688.97/17,510.33 = 7,023.73/x
  3. Step 3: Cross multiply
    12,688.97x = 17,510.33 × 7,023.73
  4. Step 4: Simplify right side
    12,688.97x = 122,987,768.80
  5. Step 5: Solve for x
    x = 122,987,768.80/12,688.97
  6. Step 6: Final answer
    x = 9,692.50

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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.