Home / 10,612.87-15,921.36-4,038.55

Finding the Fourth Proportional to 10,612.87, 15,921.36 and 4,038.55

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Solution

The fourth proportional to 10,612.87, 15,921.36 and 4,038.55 is: 6,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.87 : 15,921.36 = 4,038.55 : x
  2. Step 2: Convert to fraction form
    10,612.87/15,921.36 = 4,038.55/x
  3. Step 3: Cross multiply
    10,612.87x = 15,921.36 × 4,038.55
  4. Step 4: Simplify right side
    10,612.87x = 64,299,208.43
  5. Step 5: Solve for x
    x = 64,299,208.43/10,612.87
  6. Step 6: Final answer
    x = 6,058.61

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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.