Home / 12,864.08-17,752.20-7,274.96

Finding the Fourth Proportional to 12,864.08, 17,752.20 and 7,274.96

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Solution

The fourth proportional to 12,864.08, 17,752.20 and 7,274.96 is: 10,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.08 : 17,752.20 = 7,274.96 : x
  2. Step 2: Convert to fraction form
    12,864.08/17,752.20 = 7,274.96/x
  3. Step 3: Cross multiply
    12,864.08x = 17,752.20 × 7,274.96
  4. Step 4: Simplify right side
    12,864.08x = 129,146,544.91
  5. Step 5: Solve for x
    x = 129,146,544.91/12,864.08
  6. Step 6: Final answer
    x = 10,039.31

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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.