Home / 17,390.80-26,088.21-5,540.40

Finding the Fourth Proportional to 17,390.80, 26,088.21 and 5,540.40

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Solution

The fourth proportional to 17,390.80, 26,088.21 and 5,540.40 is: 8,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.80 : 26,088.21 = 5,540.40 : x
  2. Step 2: Convert to fraction form
    17,390.80/26,088.21 = 5,540.40/x
  3. Step 3: Cross multiply
    17,390.80x = 26,088.21 × 5,540.40
  4. Step 4: Simplify right side
    17,390.80x = 144,539,118.68
  5. Step 5: Solve for x
    x = 144,539,118.68/17,390.80
  6. Step 6: Final answer
    x = 8,311.24

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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.