Home / 13,348.79-18,420.86-7,299.17

Finding the Fourth Proportional to 13,348.79, 18,420.86 and 7,299.17

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Solution

The fourth proportional to 13,348.79, 18,420.86 and 7,299.17 is: 10,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.79 : 18,420.86 = 7,299.17 : x
  2. Step 2: Convert to fraction form
    13,348.79/18,420.86 = 7,299.17/x
  3. Step 3: Cross multiply
    13,348.79x = 18,420.86 × 7,299.17
  4. Step 4: Simplify right side
    13,348.79x = 134,456,991.73
  5. Step 5: Solve for x
    x = 134,456,991.73/13,348.79
  6. Step 6: Final answer
    x = 10,072.60

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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.