Home / 13,216.25-18,239.25-8,732.13

Finding the Fourth Proportional to 13,216.25, 18,239.25 and 8,732.13

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Solution

The fourth proportional to 13,216.25, 18,239.25 and 8,732.13 is: 12,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.25 : 18,239.25 = 8,732.13 : x
  2. Step 2: Convert to fraction form
    13,216.25/18,239.25 = 8,732.13/x
  3. Step 3: Cross multiply
    13,216.25x = 18,239.25 × 8,732.13
  4. Step 4: Simplify right side
    13,216.25x = 159,267,570.50
  5. Step 5: Solve for x
    x = 159,267,570.50/13,216.25
  6. Step 6: Final answer
    x = 12,050.89

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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.