Home / 15,514.68-21,411.84-9,143.26

Finding the Fourth Proportional to 15,514.68, 21,411.84 and 9,143.26

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Solution

The fourth proportional to 15,514.68, 21,411.84 and 9,143.26 is: 12,618.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.68 : 21,411.84 = 9,143.26 : x
  2. Step 2: Convert to fraction form
    15,514.68/21,411.84 = 9,143.26/x
  3. Step 3: Cross multiply
    15,514.68x = 21,411.84 × 9,143.26
  4. Step 4: Simplify right side
    15,514.68x = 195,774,000.96
  5. Step 5: Solve for x
    x = 195,774,000.96/15,514.68
  6. Step 6: Final answer
    x = 12,618.63

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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.