Home / 17,478.34-26,221.35-12,847.30

Finding the Fourth Proportional to 17,478.34, 26,221.35 and 12,847.30

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Solution

The fourth proportional to 17,478.34, 26,221.35 and 12,847.30 is: 19,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,478.34 : 26,221.35 = 12,847.30 : x
  2. Step 2: Convert to fraction form
    17,478.34/26,221.35 = 12,847.30/x
  3. Step 3: Cross multiply
    17,478.34x = 26,221.35 × 12,847.30
  4. Step 4: Simplify right side
    17,478.34x = 336,873,549.86
  5. Step 5: Solve for x
    x = 336,873,549.86/17,478.34
  6. Step 6: Final answer
    x = 19,273.77

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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.