Home / 13,551.15-18,708.11-9,304.72

Finding the Fourth Proportional to 13,551.15, 18,708.11 and 9,304.72

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Solution

The fourth proportional to 13,551.15, 18,708.11 and 9,304.72 is: 12,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.15 : 18,708.11 = 9,304.72 : x
  2. Step 2: Convert to fraction form
    13,551.15/18,708.11 = 9,304.72/x
  3. Step 3: Cross multiply
    13,551.15x = 18,708.11 × 9,304.72
  4. Step 4: Simplify right side
    13,551.15x = 174,073,678.76
  5. Step 5: Solve for x
    x = 174,073,678.76/13,551.15
  6. Step 6: Final answer
    x = 12,845.68

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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.