Home / 15,904.38-23,854.95-4,218.78

Finding the Fourth Proportional to 15,904.38, 23,854.95 and 4,218.78

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Solution

The fourth proportional to 15,904.38, 23,854.95 and 4,218.78 is: 6,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.38 : 23,854.95 = 4,218.78 : x
  2. Step 2: Convert to fraction form
    15,904.38/23,854.95 = 4,218.78/x
  3. Step 3: Cross multiply
    15,904.38x = 23,854.95 × 4,218.78
  4. Step 4: Simplify right side
    15,904.38x = 100,638,785.96
  5. Step 5: Solve for x
    x = 100,638,785.96/15,904.38
  6. Step 6: Final answer
    x = 6,327.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.