Home / 15,739.34-21,744.15-11,753.57

Finding the Fourth Proportional to 15,739.34, 21,744.15 and 11,753.57

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Solution

The fourth proportional to 15,739.34, 21,744.15 and 11,753.57 is: 16,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739.34 : 21,744.15 = 11,753.57 : x
  2. Step 2: Convert to fraction form
    15,739.34/21,744.15 = 11,753.57/x
  3. Step 3: Cross multiply
    15,739.34x = 21,744.15 × 11,753.57
  4. Step 4: Simplify right side
    15,739.34x = 255,571,389.12
  5. Step 5: Solve for x
    x = 255,571,389.12/15,739.34
  6. Step 6: Final answer
    x = 16,237.74

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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.