Home / 13,360.06-18,436.80-7,391.62

Finding the Fourth Proportional to 13,360.06, 18,436.80 and 7,391.62

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Solution

The fourth proportional to 13,360.06, 18,436.80 and 7,391.62 is: 10,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.06 : 18,436.80 = 7,391.62 : x
  2. Step 2: Convert to fraction form
    13,360.06/18,436.80 = 7,391.62/x
  3. Step 3: Cross multiply
    13,360.06x = 18,436.80 × 7,391.62
  4. Step 4: Simplify right side
    13,360.06x = 136,277,819.62
  5. Step 5: Solve for x
    x = 136,277,819.62/13,360.06
  6. Step 6: Final answer
    x = 10,200.39

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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.