Home / 13,427.62-18,532.34-11,185.95

Finding the Fourth Proportional to 13,427.62, 18,532.34 and 11,185.95

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Solution

The fourth proportional to 13,427.62, 18,532.34 and 11,185.95 is: 15,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.62 : 18,532.34 = 11,185.95 : x
  2. Step 2: Convert to fraction form
    13,427.62/18,532.34 = 11,185.95/x
  3. Step 3: Cross multiply
    13,427.62x = 18,532.34 × 11,185.95
  4. Step 4: Simplify right side
    13,427.62x = 207,301,680.03
  5. Step 5: Solve for x
    x = 207,301,680.03/13,427.62
  6. Step 6: Final answer
    x = 15,438.45

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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.