Home / 13,590.06-20,385.16-6,189.36

Finding the Fourth Proportional to 13,590.06, 20,385.16 and 6,189.36

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Solution

The fourth proportional to 13,590.06, 20,385.16 and 6,189.36 is: 9,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.06 : 20,385.16 = 6,189.36 : x
  2. Step 2: Convert to fraction form
    13,590.06/20,385.16 = 6,189.36/x
  3. Step 3: Cross multiply
    13,590.06x = 20,385.16 × 6,189.36
  4. Step 4: Simplify right side
    13,590.06x = 126,171,093.90
  5. Step 5: Solve for x
    x = 126,171,093.90/13,590.06
  6. Step 6: Final answer
    x = 9,284.07

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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.