Home / 18,424.34-27,636.41-5,276.72

Finding the Fourth Proportional to 18,424.34, 27,636.41 and 5,276.72

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Solution

The fourth proportional to 18,424.34, 27,636.41 and 5,276.72 is: 7,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.34 : 27,636.41 = 5,276.72 : x
  2. Step 2: Convert to fraction form
    18,424.34/27,636.41 = 5,276.72/x
  3. Step 3: Cross multiply
    18,424.34x = 27,636.41 × 5,276.72
  4. Step 4: Simplify right side
    18,424.34x = 145,829,432.81
  5. Step 5: Solve for x
    x = 145,829,432.81/18,424.34
  6. Step 6: Final answer
    x = 7,915.04

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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.