Home / 7,981.74-11,014.88-4,445.02

Finding the Fourth Proportional to 7,981.74, 11,014.88 and 4,445.02

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Solution

The fourth proportional to 7,981.74, 11,014.88 and 4,445.02 is: 6,134.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.74 : 11,014.88 = 4,445.02 : x
  2. Step 2: Convert to fraction form
    7,981.74/11,014.88 = 4,445.02/x
  3. Step 3: Cross multiply
    7,981.74x = 11,014.88 × 4,445.02
  4. Step 4: Simplify right side
    7,981.74x = 48,961,353.44
  5. Step 5: Solve for x
    x = 48,961,353.44/7,981.74
  6. Step 6: Final answer
    x = 6,134.17

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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.