Home / 18,961.52-26,155.60-11,875.64

Finding the Fourth Proportional to 18,961.52, 26,155.60 and 11,875.64

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Solution

The fourth proportional to 18,961.52, 26,155.60 and 11,875.64 is: 16,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.52 : 26,155.60 = 11,875.64 : x
  2. Step 2: Convert to fraction form
    18,961.52/26,155.60 = 11,875.64/x
  3. Step 3: Cross multiply
    18,961.52x = 26,155.60 × 11,875.64
  4. Step 4: Simplify right side
    18,961.52x = 310,614,489.58
  5. Step 5: Solve for x
    x = 310,614,489.58/18,961.52
  6. Step 6: Final answer
    x = 16,381.31

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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.