Home / 16,772.86-23,145.03-9,219.10

Finding the Fourth Proportional to 16,772.86, 23,145.03 and 9,219.10

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Solution

The fourth proportional to 16,772.86, 23,145.03 and 9,219.10 is: 12,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.86 : 23,145.03 = 9,219.10 : x
  2. Step 2: Convert to fraction form
    16,772.86/23,145.03 = 9,219.10/x
  3. Step 3: Cross multiply
    16,772.86x = 23,145.03 × 9,219.10
  4. Step 4: Simplify right side
    16,772.86x = 213,376,346.07
  5. Step 5: Solve for x
    x = 213,376,346.07/16,772.86
  6. Step 6: Final answer
    x = 12,721.52

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Double scale
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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.