Home / 11,240.60-16,860.90-7,085.30

Finding the Fourth Proportional to 11,240.60, 16,860.90 and 7,085.30

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Solution

The fourth proportional to 11,240.60, 16,860.90 and 7,085.30 is: 10,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.60 : 16,860.90 = 7,085.30 : x
  2. Step 2: Convert to fraction form
    11,240.60/16,860.90 = 7,085.30/x
  3. Step 3: Cross multiply
    11,240.60x = 16,860.90 × 7,085.30
  4. Step 4: Simplify right side
    11,240.60x = 119,464,534.77
  5. Step 5: Solve for x
    x = 119,464,534.77/11,240.60
  6. Step 6: Final answer
    x = 10,627.95

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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.