Home / 7,218.57-10,831.28-5,000.81

Finding the Fourth Proportional to 7,218.57, 10,831.28 and 5,000.81

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Solution

The fourth proportional to 7,218.57, 10,831.28 and 5,000.81 is: 7,503.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.57 : 10,831.28 = 5,000.81 : x
  2. Step 2: Convert to fraction form
    7,218.57/10,831.28 = 5,000.81/x
  3. Step 3: Cross multiply
    7,218.57x = 10,831.28 × 5,000.81
  4. Step 4: Simplify right side
    7,218.57x = 54,165,173.34
  5. Step 5: Solve for x
    x = 54,165,173.34/7,218.57
  6. Step 6: Final answer
    x = 7,503.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.