Home / 15,744.48-21,690.42-10,956.20

Finding the Fourth Proportional to 15,744.48, 21,690.42 and 10,956.20

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Solution

The fourth proportional to 15,744.48, 21,690.42 and 10,956.20 is: 15,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.48 : 21,690.42 = 10,956.20 : x
  2. Step 2: Convert to fraction form
    15,744.48/21,690.42 = 10,956.20/x
  3. Step 3: Cross multiply
    15,744.48x = 21,690.42 × 10,956.20
  4. Step 4: Simplify right side
    15,744.48x = 237,644,579.60
  5. Step 5: Solve for x
    x = 237,644,579.60/15,744.48
  6. Step 6: Final answer
    x = 15,093.83

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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.