Home / 7,529.81-10,391.14-4,172.61

Finding the Fourth Proportional to 7,529.81, 10,391.14 and 4,172.61

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Solution

The fourth proportional to 7,529.81, 10,391.14 and 4,172.61 is: 5,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.81 : 10,391.14 = 4,172.61 : x
  2. Step 2: Convert to fraction form
    7,529.81/10,391.14 = 4,172.61/x
  3. Step 3: Cross multiply
    7,529.81x = 10,391.14 × 4,172.61
  4. Step 4: Simplify right side
    7,529.81x = 43,358,195.39
  5. Step 5: Solve for x
    x = 43,358,195.39/7,529.81
  6. Step 6: Final answer
    x = 5,758.21

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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.