Home / 16,215.68-22,376.80-9,045.12

Finding the Fourth Proportional to 16,215.68, 22,376.80 and 9,045.12

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Solution

The fourth proportional to 16,215.68, 22,376.80 and 9,045.12 is: 12,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,215.68 : 22,376.80 = 9,045.12 : x
  2. Step 2: Convert to fraction form
    16,215.68/22,376.80 = 9,045.12/x
  3. Step 3: Cross multiply
    16,215.68x = 22,376.80 × 9,045.12
  4. Step 4: Simplify right side
    16,215.68x = 202,400,841.22
  5. Step 5: Solve for x
    x = 202,400,841.22/16,215.68
  6. Step 6: Final answer
    x = 12,481.80

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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.