Home / 13,306.90-18,363.40-7,338.82

Finding the Fourth Proportional to 13,306.90, 18,363.40 and 7,338.82

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Solution

The fourth proportional to 13,306.90, 18,363.40 and 7,338.82 is: 10,127.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.90 : 18,363.40 = 7,338.82 : x
  2. Step 2: Convert to fraction form
    13,306.90/18,363.40 = 7,338.82/x
  3. Step 3: Cross multiply
    13,306.90x = 18,363.40 × 7,338.82
  4. Step 4: Simplify right side
    13,306.90x = 134,765,687.19
  5. Step 5: Solve for x
    x = 134,765,687.19/13,306.90
  6. Step 6: Final answer
    x = 10,127.50

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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.