Home / 7,400.43-10,200.74-5,009.65

Finding the Fourth Proportional to 7,400.43, 10,200.74 and 5,009.65

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Solution

The fourth proportional to 7,400.43, 10,200.74 and 5,009.65 is: 6,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.43 : 10,200.74 = 5,009.65 : x
  2. Step 2: Convert to fraction form
    7,400.43/10,200.74 = 5,009.65/x
  3. Step 3: Cross multiply
    7,400.43x = 10,200.74 × 5,009.65
  4. Step 4: Simplify right side
    7,400.43x = 51,102,086.59
  5. Step 5: Solve for x
    x = 51,102,086.59/7,400.43
  6. Step 6: Final answer
    x = 6,905.29

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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.