Home / 13,241.93-18,276.78-9,159.48

Finding the Fourth Proportional to 13,241.93, 18,276.78 and 9,159.48

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Solution

The fourth proportional to 13,241.93, 18,276.78 and 9,159.48 is: 12,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.93 : 18,276.78 = 9,159.48 : x
  2. Step 2: Convert to fraction form
    13,241.93/18,276.78 = 9,159.48/x
  3. Step 3: Cross multiply
    13,241.93x = 18,276.78 × 9,159.48
  4. Step 4: Simplify right side
    13,241.93x = 167,405,663.69
  5. Step 5: Solve for x
    x = 167,405,663.69/13,241.93
  6. Step 6: Final answer
    x = 12,642.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.