Home / 13,220.14-18,244.30-7,252.06

Finding the Fourth Proportional to 13,220.14, 18,244.30 and 7,252.06

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Solution

The fourth proportional to 13,220.14, 18,244.30 and 7,252.06 is: 10,008.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.14 : 18,244.30 = 7,252.06 : x
  2. Step 2: Convert to fraction form
    13,220.14/18,244.30 = 7,252.06/x
  3. Step 3: Cross multiply
    13,220.14x = 18,244.30 × 7,252.06
  4. Step 4: Simplify right side
    13,220.14x = 132,308,758.26
  5. Step 5: Solve for x
    x = 132,308,758.26/13,220.14
  6. Step 6: Final answer
    x = 10,008.12

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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.