Home / 18,677.28-25,775.60-10,293.76

Finding the Fourth Proportional to 18,677.28, 25,775.60 and 10,293.76

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Solution

The fourth proportional to 18,677.28, 25,775.60 and 10,293.76 is: 14,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.28 : 25,775.60 = 10,293.76 : x
  2. Step 2: Convert to fraction form
    18,677.28/25,775.60 = 10,293.76/x
  3. Step 3: Cross multiply
    18,677.28x = 25,775.60 × 10,293.76
  4. Step 4: Simplify right side
    18,677.28x = 265,327,840.26
  5. Step 5: Solve for x
    x = 265,327,840.26/18,677.28
  6. Step 6: Final answer
    x = 14,205.91

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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.