Home / 10,155.73-15,235.05-3,136.32

Finding the Fourth Proportional to 10,155.73, 15,235.05 and 3,136.32

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Solution

The fourth proportional to 10,155.73, 15,235.05 and 3,136.32 is: 4,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.73 : 15,235.05 = 3,136.32 : x
  2. Step 2: Convert to fraction form
    10,155.73/15,235.05 = 3,136.32/x
  3. Step 3: Cross multiply
    10,155.73x = 15,235.05 × 3,136.32
  4. Step 4: Simplify right side
    10,155.73x = 47,781,992.02
  5. Step 5: Solve for x
    x = 47,781,992.02/10,155.73
  6. Step 6: Final answer
    x = 4,704.93

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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.