Home / 10,321.78-15,473.52-4,476.40

Finding the Fourth Proportional to 10,321.78, 15,473.52 and 4,476.40

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Solution

The fourth proportional to 10,321.78, 15,473.52 and 4,476.40 is: 6,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.78 : 15,473.52 = 4,476.40 : x
  2. Step 2: Convert to fraction form
    10,321.78/15,473.52 = 4,476.40/x
  3. Step 3: Cross multiply
    10,321.78x = 15,473.52 × 4,476.40
  4. Step 4: Simplify right side
    10,321.78x = 69,265,664.93
  5. Step 5: Solve for x
    x = 69,265,664.93/10,321.78
  6. Step 6: Final answer
    x = 6,710.63

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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.