Home / 10,212.36-15,318.62-2,817.23

Finding the Fourth Proportional to 10,212.36, 15,318.62 and 2,817.23

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Solution

The fourth proportional to 10,212.36, 15,318.62 and 2,817.23 is: 4,225.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.36 : 15,318.62 = 2,817.23 : x
  2. Step 2: Convert to fraction form
    10,212.36/15,318.62 = 2,817.23/x
  3. Step 3: Cross multiply
    10,212.36x = 15,318.62 × 2,817.23
  4. Step 4: Simplify right side
    10,212.36x = 43,155,985.14
  5. Step 5: Solve for x
    x = 43,155,985.14/10,212.36
  6. Step 6: Final answer
    x = 4,225.86

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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.