Home / 15,392.09-21,239.92-10,077.68

Finding the Fourth Proportional to 15,392.09, 21,239.92 and 10,077.68

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Solution

The fourth proportional to 15,392.09, 21,239.92 and 10,077.68 is: 13,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.09 : 21,239.92 = 10,077.68 : x
  2. Step 2: Convert to fraction form
    15,392.09/21,239.92 = 10,077.68/x
  3. Step 3: Cross multiply
    15,392.09x = 21,239.92 × 10,077.68
  4. Step 4: Simplify right side
    15,392.09x = 214,049,182.68
  5. Step 5: Solve for x
    x = 214,049,182.68/15,392.09
  6. Step 6: Final answer
    x = 13,906.44

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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.