Home / 7,451.40-11,214.93-5,611.80

Finding the Fourth Proportional to 7,451.40, 11,214.93 and 5,611.80

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Solution

The fourth proportional to 7,451.40, 11,214.93 and 5,611.80 is: 8,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.40 : 11,214.93 = 5,611.80 : x
  2. Step 2: Convert to fraction form
    7,451.40/11,214.93 = 5,611.80/x
  3. Step 3: Cross multiply
    7,451.40x = 11,214.93 × 5,611.80
  4. Step 4: Simplify right side
    7,451.40x = 62,935,944.17
  5. Step 5: Solve for x
    x = 62,935,944.17/7,451.40
  6. Step 6: Final answer
    x = 8,446.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.