Home / 15,747.60-21,744.36-10,722.36

Finding the Fourth Proportional to 15,747.60, 21,744.36 and 10,722.36

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Solution

The fourth proportional to 15,747.60, 21,744.36 and 10,722.36 is: 14,805.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.60 : 21,744.36 = 10,722.36 : x
  2. Step 2: Convert to fraction form
    15,747.60/21,744.36 = 10,722.36/x
  3. Step 3: Cross multiply
    15,747.60x = 21,744.36 × 10,722.36
  4. Step 4: Simplify right side
    15,747.60x = 233,150,855.89
  5. Step 5: Solve for x
    x = 233,150,855.89/15,747.60
  6. Step 6: Final answer
    x = 14,805.49

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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.