Home / 18,886.34-26,062.60-10,388.45

Finding the Fourth Proportional to 18,886.34, 26,062.60 and 10,388.45

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Solution

The fourth proportional to 18,886.34, 26,062.60 and 10,388.45 is: 14,335.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.34 : 26,062.60 = 10,388.45 : x
  2. Step 2: Convert to fraction form
    18,886.34/26,062.60 = 10,388.45/x
  3. Step 3: Cross multiply
    18,886.34x = 26,062.60 × 10,388.45
  4. Step 4: Simplify right side
    18,886.34x = 270,750,061.02
  5. Step 5: Solve for x
    x = 270,750,061.02/18,886.34
  6. Step 6: Final answer
    x = 14,335.76

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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.