Home / 8,970.75-13,463.11-3,428.02

Finding the Fourth Proportional to 8,970.75, 13,463.11 and 3,428.02

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Solution

The fourth proportional to 8,970.75, 13,463.11 and 3,428.02 is: 5,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.75 : 13,463.11 = 3,428.02 : x
  2. Step 2: Convert to fraction form
    8,970.75/13,463.11 = 3,428.02/x
  3. Step 3: Cross multiply
    8,970.75x = 13,463.11 × 3,428.02
  4. Step 4: Simplify right side
    8,970.75x = 46,151,831.46
  5. Step 5: Solve for x
    x = 46,151,831.46/8,970.75
  6. Step 6: Final answer
    x = 5,144.70

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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.