Home / 13,524.30-18,671.31-9,281.52

Finding the Fourth Proportional to 13,524.30, 18,671.31 and 9,281.52

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Solution

The fourth proportional to 13,524.30, 18,671.31 and 9,281.52 is: 12,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.30 : 18,671.31 = 9,281.52 : x
  2. Step 2: Convert to fraction form
    13,524.30/18,671.31 = 9,281.52/x
  3. Step 3: Cross multiply
    13,524.30x = 18,671.31 × 9,281.52
  4. Step 4: Simplify right side
    13,524.30x = 173,298,137.19
  5. Step 5: Solve for x
    x = 173,298,137.19/13,524.30
  6. Step 6: Final answer
    x = 12,813.83

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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.