Home / 13,310.52-18,387.18-9,603.96

Finding the Fourth Proportional to 13,310.52, 18,387.18 and 9,603.96

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Solution

The fourth proportional to 13,310.52, 18,387.18 and 9,603.96 is: 13,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.52 : 18,387.18 = 9,603.96 : x
  2. Step 2: Convert to fraction form
    13,310.52/18,387.18 = 9,603.96/x
  3. Step 3: Cross multiply
    13,310.52x = 18,387.18 × 9,603.96
  4. Step 4: Simplify right side
    13,310.52x = 176,589,741.23
  5. Step 5: Solve for x
    x = 176,589,741.23/13,310.52
  6. Step 6: Final answer
    x = 13,266.93

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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.