Home / 10,409.05-15,604.80-4,859.47

Finding the Fourth Proportional to 10,409.05, 15,604.80 and 4,859.47

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Solution

The fourth proportional to 10,409.05, 15,604.80 and 4,859.47 is: 7,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.05 : 15,604.80 = 4,859.47 : x
  2. Step 2: Convert to fraction form
    10,409.05/15,604.80 = 4,859.47/x
  3. Step 3: Cross multiply
    10,409.05x = 15,604.80 × 4,859.47
  4. Step 4: Simplify right side
    10,409.05x = 75,831,057.46
  5. Step 5: Solve for x
    x = 75,831,057.46/10,409.05
  6. Step 6: Final answer
    x = 7,285.11

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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.