Home / 10,490.36-15,741.62-3,916.30

Finding the Fourth Proportional to 10,490.36, 15,741.62 and 3,916.30

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Solution

The fourth proportional to 10,490.36, 15,741.62 and 3,916.30 is: 5,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.36 : 15,741.62 = 3,916.30 : x
  2. Step 2: Convert to fraction form
    10,490.36/15,741.62 = 3,916.30/x
  3. Step 3: Cross multiply
    10,490.36x = 15,741.62 × 3,916.30
  4. Step 4: Simplify right side
    10,490.36x = 61,648,906.41
  5. Step 5: Solve for x
    x = 61,648,906.41/10,490.36
  6. Step 6: Final answer
    x = 5,876.72

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1.5x scale

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.