Home / 15,188.84-22,751.36-9,639.36

Finding the Fourth Proportional to 15,188.84, 22,751.36 and 9,639.36

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Solution

The fourth proportional to 15,188.84, 22,751.36 and 9,639.36 is: 14,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.84 : 22,751.36 = 9,639.36 : x
  2. Step 2: Convert to fraction form
    15,188.84/22,751.36 = 9,639.36/x
  3. Step 3: Cross multiply
    15,188.84x = 22,751.36 × 9,639.36
  4. Step 4: Simplify right side
    15,188.84x = 219,308,549.53
  5. Step 5: Solve for x
    x = 219,308,549.53/15,188.84
  6. Step 6: Final answer
    x = 14,438.80

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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.