Home / 7,400.72-11,110.80-5,210.48

Finding the Fourth Proportional to 7,400.72, 11,110.80 and 5,210.48

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Solution

The fourth proportional to 7,400.72, 11,110.80 and 5,210.48 is: 7,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.72 : 11,110.80 = 5,210.48 : x
  2. Step 2: Convert to fraction form
    7,400.72/11,110.80 = 5,210.48/x
  3. Step 3: Cross multiply
    7,400.72x = 11,110.80 × 5,210.48
  4. Step 4: Simplify right side
    7,400.72x = 57,892,601.18
  5. Step 5: Solve for x
    x = 57,892,601.18/7,400.72
  6. Step 6: Final answer
    x = 7,822.56

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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.