Home / 7,981.54-11,014.80-4,624.36

Finding the Fourth Proportional to 7,981.54, 11,014.80 and 4,624.36

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Solution

The fourth proportional to 7,981.54, 11,014.80 and 4,624.36 is: 6,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.54 : 11,014.80 = 4,624.36 : x
  2. Step 2: Convert to fraction form
    7,981.54/11,014.80 = 4,624.36/x
  3. Step 3: Cross multiply
    7,981.54x = 11,014.80 × 4,624.36
  4. Step 4: Simplify right side
    7,981.54x = 50,936,400.53
  5. Step 5: Solve for x
    x = 50,936,400.53/7,981.54
  6. Step 6: Final answer
    x = 6,381.78

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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.