Home / 7,529.86-10,391.07-4,172.50

Finding the Fourth Proportional to 7,529.86, 10,391.07 and 4,172.50

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Solution

The fourth proportional to 7,529.86, 10,391.07 and 4,172.50 is: 5,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.86 : 10,391.07 = 4,172.50 : x
  2. Step 2: Convert to fraction form
    7,529.86/10,391.07 = 4,172.50/x
  3. Step 3: Cross multiply
    7,529.86x = 10,391.07 × 4,172.50
  4. Step 4: Simplify right side
    7,529.86x = 43,356,739.58
  5. Step 5: Solve for x
    x = 43,356,739.58/7,529.86
  6. Step 6: Final answer
    x = 5,757.97

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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.