Home / 7,374.20-11,045.10-4,447.40

Finding the Fourth Proportional to 7,374.20, 11,045.10 and 4,447.40

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Solution

The fourth proportional to 7,374.20, 11,045.10 and 4,447.40 is: 6,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.20 : 11,045.10 = 4,447.40 : x
  2. Step 2: Convert to fraction form
    7,374.20/11,045.10 = 4,447.40/x
  3. Step 3: Cross multiply
    7,374.20x = 11,045.10 × 4,447.40
  4. Step 4: Simplify right side
    7,374.20x = 49,121,977.74
  5. Step 5: Solve for x
    x = 49,121,977.74/7,374.20
  6. Step 6: Final answer
    x = 6,661.33

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1.5x scale

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.