Home / 17,909.15-26,863.95-5,429.30

Finding the Fourth Proportional to 17,909.15, 26,863.95 and 5,429.30

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Solution

The fourth proportional to 17,909.15, 26,863.95 and 5,429.30 is: 8,144.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,909.15 : 26,863.95 = 5,429.30 : x
  2. Step 2: Convert to fraction form
    17,909.15/26,863.95 = 5,429.30/x
  3. Step 3: Cross multiply
    17,909.15x = 26,863.95 × 5,429.30
  4. Step 4: Simplify right side
    17,909.15x = 145,852,443.74
  5. Step 5: Solve for x
    x = 145,852,443.74/17,909.15
  6. Step 6: Final answer
    x = 8,144.02

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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.