Home / 11,390.20-17,085.54-4,370.44

Finding the Fourth Proportional to 11,390.20, 17,085.54 and 4,370.44

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Solution

The fourth proportional to 11,390.20, 17,085.54 and 4,370.44 is: 6,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.20 : 17,085.54 = 4,370.44 : x
  2. Step 2: Convert to fraction form
    11,390.20/17,085.54 = 4,370.44/x
  3. Step 3: Cross multiply
    11,390.20x = 17,085.54 × 4,370.44
  4. Step 4: Simplify right side
    11,390.20x = 74,671,327.44
  5. Step 5: Solve for x
    x = 74,671,327.44/11,390.20
  6. Step 6: Final answer
    x = 6,555.75

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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.