Home / 10,490.28-15,735.41-3,099.93

Finding the Fourth Proportional to 10,490.28, 15,735.41 and 3,099.93

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Solution

The fourth proportional to 10,490.28, 15,735.41 and 3,099.93 is: 4,649.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.28 : 15,735.41 = 3,099.93 : x
  2. Step 2: Convert to fraction form
    10,490.28/15,735.41 = 3,099.93/x
  3. Step 3: Cross multiply
    10,490.28x = 15,735.41 × 3,099.93
  4. Step 4: Simplify right side
    10,490.28x = 48,778,654.02
  5. Step 5: Solve for x
    x = 48,778,654.02/10,490.28
  6. Step 6: Final answer
    x = 4,649.89

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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.