Home / 10,211.33-15,317.09-2,815.63

Finding the Fourth Proportional to 10,211.33, 15,317.09 and 2,815.63

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Solution

The fourth proportional to 10,211.33, 15,317.09 and 2,815.63 is: 4,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.33 : 15,317.09 = 2,815.63 : x
  2. Step 2: Convert to fraction form
    10,211.33/15,317.09 = 2,815.63/x
  3. Step 3: Cross multiply
    10,211.33x = 15,317.09 × 2,815.63
  4. Step 4: Simplify right side
    10,211.33x = 43,127,216.30
  5. Step 5: Solve for x
    x = 43,127,216.30/10,211.33
  6. Step 6: Final answer
    x = 4,223.47

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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.