Home / 10,281.82-15,420.30-4,731.70

Finding the Fourth Proportional to 10,281.82, 15,420.30 and 4,731.70

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Solution

The fourth proportional to 10,281.82, 15,420.30 and 4,731.70 is: 7,096.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.82 : 15,420.30 = 4,731.70 : x
  2. Step 2: Convert to fraction form
    10,281.82/15,420.30 = 4,731.70/x
  3. Step 3: Cross multiply
    10,281.82x = 15,420.30 × 4,731.70
  4. Step 4: Simplify right side
    10,281.82x = 72,964,233.51
  5. Step 5: Solve for x
    x = 72,964,233.51/10,281.82
  6. Step 6: Final answer
    x = 7,096.43

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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.