Home / 7,355.07-10,144.89-6,140.34

Finding the Fourth Proportional to 7,355.07, 10,144.89 and 6,140.34

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Solution

The fourth proportional to 7,355.07, 10,144.89 and 6,140.34 is: 8,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.07 : 10,144.89 = 6,140.34 : x
  2. Step 2: Convert to fraction form
    7,355.07/10,144.89 = 6,140.34/x
  3. Step 3: Cross multiply
    7,355.07x = 10,144.89 × 6,140.34
  4. Step 4: Simplify right side
    7,355.07x = 62,293,073.86
  5. Step 5: Solve for x
    x = 62,293,073.86/7,355.07
  6. Step 6: Final answer
    x = 8,469.41

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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.