Home / 9,109.17-13,656.45-3,561.48

Finding the Fourth Proportional to 9,109.17, 13,656.45 and 3,561.48

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Solution

The fourth proportional to 9,109.17, 13,656.45 and 3,561.48 is: 5,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.17 : 13,656.45 = 3,561.48 : x
  2. Step 2: Convert to fraction form
    9,109.17/13,656.45 = 3,561.48/x
  3. Step 3: Cross multiply
    9,109.17x = 13,656.45 × 3,561.48
  4. Step 4: Simplify right side
    9,109.17x = 48,637,173.55
  5. Step 5: Solve for x
    x = 48,637,173.55/9,109.17
  6. Step 6: Final answer
    x = 5,339.36

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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.