Home / 12,521.03-17,251.20-8,264.51

Finding the Fourth Proportional to 12,521.03, 17,251.20 and 8,264.51

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Solution

The fourth proportional to 12,521.03, 17,251.20 and 8,264.51 is: 11,386.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.03 : 17,251.20 = 8,264.51 : x
  2. Step 2: Convert to fraction form
    12,521.03/17,251.20 = 8,264.51/x
  3. Step 3: Cross multiply
    12,521.03x = 17,251.20 × 8,264.51
  4. Step 4: Simplify right side
    12,521.03x = 142,572,714.91
  5. Step 5: Solve for x
    x = 142,572,714.91/12,521.03
  6. Step 6: Final answer
    x = 11,386.66

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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.