Home / 13,348.06-18,420.24-7,605.58

Finding the Fourth Proportional to 13,348.06, 18,420.24 and 7,605.58

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Solution

The fourth proportional to 13,348.06, 18,420.24 and 7,605.58 is: 10,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.06 : 18,420.24 = 7,605.58 : x
  2. Step 2: Convert to fraction form
    13,348.06/18,420.24 = 7,605.58/x
  3. Step 3: Cross multiply
    13,348.06x = 18,420.24 × 7,605.58
  4. Step 4: Simplify right side
    13,348.06x = 140,096,608.94
  5. Step 5: Solve for x
    x = 140,096,608.94/13,348.06
  6. Step 6: Final answer
    x = 10,495.65

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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.