Home / 7,981.68-11,014.72-4,445.22

Finding the Fourth Proportional to 7,981.68, 11,014.72 and 4,445.22

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Solution

The fourth proportional to 7,981.68, 11,014.72 and 4,445.22 is: 6,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.68 : 11,014.72 = 4,445.22 : x
  2. Step 2: Convert to fraction form
    7,981.68/11,014.72 = 4,445.22/x
  3. Step 3: Cross multiply
    7,981.68x = 11,014.72 × 4,445.22
  4. Step 4: Simplify right side
    7,981.68x = 48,962,853.64
  5. Step 5: Solve for x
    x = 48,962,853.64/7,981.68
  6. Step 6: Final answer
    x = 6,134.40

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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.