Home / 7,400.16-10,212.36-4,213.92

Finding the Fourth Proportional to 7,400.16, 10,212.36 and 4,213.92

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Solution

The fourth proportional to 7,400.16, 10,212.36 and 4,213.92 is: 5,815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.16 : 10,212.36 = 4,213.92 : x
  2. Step 2: Convert to fraction form
    7,400.16/10,212.36 = 4,213.92/x
  3. Step 3: Cross multiply
    7,400.16x = 10,212.36 × 4,213.92
  4. Step 4: Simplify right side
    7,400.16x = 43,034,068.05
  5. Step 5: Solve for x
    x = 43,034,068.05/7,400.16
  6. Step 6: Final answer
    x = 5,815.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.