Home / 10,579.61-15,864.32-3,911.63

Finding the Fourth Proportional to 10,579.61, 15,864.32 and 3,911.63

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Solution

The fourth proportional to 10,579.61, 15,864.32 and 3,911.63 is: 5,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.61 : 15,864.32 = 3,911.63 : x
  2. Step 2: Convert to fraction form
    10,579.61/15,864.32 = 3,911.63/x
  3. Step 3: Cross multiply
    10,579.61x = 15,864.32 × 3,911.63
  4. Step 4: Simplify right side
    10,579.61x = 62,055,280.50
  5. Step 5: Solve for x
    x = 62,055,280.50/10,579.61
  6. Step 6: Final answer
    x = 5,865.55

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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.