Home / 13,261.73-18,301.44-7,884.74

Finding the Fourth Proportional to 13,261.73, 18,301.44 and 7,884.74

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Solution

The fourth proportional to 13,261.73, 18,301.44 and 7,884.74 is: 10,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.73 : 18,301.44 = 7,884.74 : x
  2. Step 2: Convert to fraction form
    13,261.73/18,301.44 = 7,884.74/x
  3. Step 3: Cross multiply
    13,261.73x = 18,301.44 × 7,884.74
  4. Step 4: Simplify right side
    13,261.73x = 144,302,171.35
  5. Step 5: Solve for x
    x = 144,302,171.35/13,261.73
  6. Step 6: Final answer
    x = 10,881.10

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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.