Home / 13,488.82-18,607.96-9,013.68

Finding the Fourth Proportional to 13,488.82, 18,607.96 and 9,013.68

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Solution

The fourth proportional to 13,488.82, 18,607.96 and 9,013.68 is: 12,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.82 : 18,607.96 = 9,013.68 : x
  2. Step 2: Convert to fraction form
    13,488.82/18,607.96 = 9,013.68/x
  3. Step 3: Cross multiply
    13,488.82x = 18,607.96 × 9,013.68
  4. Step 4: Simplify right side
    13,488.82x = 167,726,103.85
  5. Step 5: Solve for x
    x = 167,726,103.85/13,488.82
  6. Step 6: Final answer
    x = 12,434.45

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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.