Home / 12,772.62-17,621.19-9,423.51

Finding the Fourth Proportional to 12,772.62, 17,621.19 and 9,423.51

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Solution

The fourth proportional to 12,772.62, 17,621.19 and 9,423.51 is: 13,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.62 : 17,621.19 = 9,423.51 : x
  2. Step 2: Convert to fraction form
    12,772.62/17,621.19 = 9,423.51/x
  3. Step 3: Cross multiply
    12,772.62x = 17,621.19 × 9,423.51
  4. Step 4: Simplify right side
    12,772.62x = 166,053,460.18
  5. Step 5: Solve for x
    x = 166,053,460.18/12,772.62
  6. Step 6: Final answer
    x = 13,000.74

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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.