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Finding the Fourth Proportional to 15,252.40, 22,900.20 and 11,969.20

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Solution

The fourth proportional to 15,252.40, 22,900.20 and 11,969.20 is: 17,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.40 : 22,900.20 = 11,969.20 : x
  2. Step 2: Convert to fraction form
    15,252.40/22,900.20 = 11,969.20/x
  3. Step 3: Cross multiply
    15,252.40x = 22,900.20 × 11,969.20
  4. Step 4: Simplify right side
    15,252.40x = 274,097,073.84
  5. Step 5: Solve for x
    x = 274,097,073.84/15,252.40
  6. Step 6: Final answer
    x = 17,970.75

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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.