Home / 10,490.93-15,736.61-3,915.80

Finding the Fourth Proportional to 10,490.93, 15,736.61 and 3,915.80

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Solution

The fourth proportional to 10,490.93, 15,736.61 and 3,915.80 is: 5,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.93 : 15,736.61 = 3,915.80 : x
  2. Step 2: Convert to fraction form
    10,490.93/15,736.61 = 3,915.80/x
  3. Step 3: Cross multiply
    10,490.93x = 15,736.61 × 3,915.80
  4. Step 4: Simplify right side
    10,490.93x = 61,621,319.18
  5. Step 5: Solve for x
    x = 61,621,319.18/10,490.93
  6. Step 6: Final answer
    x = 5,873.77

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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.