Home / 9,109.20-13,656.30-4,111.90

Finding the Fourth Proportional to 9,109.20, 13,656.30 and 4,111.90

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Solution

The fourth proportional to 9,109.20, 13,656.30 and 4,111.90 is: 6,164.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.20 : 13,656.30 = 4,111.90 : x
  2. Step 2: Convert to fraction form
    9,109.20/13,656.30 = 4,111.90/x
  3. Step 3: Cross multiply
    9,109.20x = 13,656.30 × 4,111.90
  4. Step 4: Simplify right side
    9,109.20x = 56,153,339.97
  5. Step 5: Solve for x
    x = 56,153,339.97/9,109.20
  6. Step 6: Final answer
    x = 6,164.46

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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.