Home / 13,275.18-18,319.77-7,306.86

Finding the Fourth Proportional to 13,275.18, 18,319.77 and 7,306.86

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Solution

The fourth proportional to 13,275.18, 18,319.77 and 7,306.86 is: 10,083.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.18 : 18,319.77 = 7,306.86 : x
  2. Step 2: Convert to fraction form
    13,275.18/18,319.77 = 7,306.86/x
  3. Step 3: Cross multiply
    13,275.18x = 18,319.77 × 7,306.86
  4. Step 4: Simplify right side
    13,275.18x = 133,859,994.62
  5. Step 5: Solve for x
    x = 133,859,994.62/13,275.18
  6. Step 6: Final answer
    x = 10,083.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.