Home / 7,400.07-10,211.40-5,005.17

Finding the Fourth Proportional to 7,400.07, 10,211.40 and 5,005.17

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Solution

The fourth proportional to 7,400.07, 10,211.40 and 5,005.17 is: 6,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.07 : 10,211.40 = 5,005.17 : x
  2. Step 2: Convert to fraction form
    7,400.07/10,211.40 = 5,005.17/x
  3. Step 3: Cross multiply
    7,400.07x = 10,211.40 × 5,005.17
  4. Step 4: Simplify right side
    7,400.07x = 51,109,792.94
  5. Step 5: Solve for x
    x = 51,109,792.94/7,400.07
  6. Step 6: Final answer
    x = 6,906.66

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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.