Home / 10,212.19-15,319.34-2,816.65

Finding the Fourth Proportional to 10,212.19, 15,319.34 and 2,816.65

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Solution

The fourth proportional to 10,212.19, 15,319.34 and 2,816.65 is: 4,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.19 : 15,319.34 = 2,816.65 : x
  2. Step 2: Convert to fraction form
    10,212.19/15,319.34 = 2,816.65/x
  3. Step 3: Cross multiply
    10,212.19x = 15,319.34 × 2,816.65
  4. Step 4: Simplify right side
    10,212.19x = 43,149,219.01
  5. Step 5: Solve for x
    x = 43,149,219.01/10,212.19
  6. Step 6: Final answer
    x = 4,225.27

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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.