Home / 12,085.08-16,690.04-8,317.95

Finding the Fourth Proportional to 12,085.08, 16,690.04 and 8,317.95

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Solution

The fourth proportional to 12,085.08, 16,690.04 and 8,317.95 is: 11,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.08 : 16,690.04 = 8,317.95 : x
  2. Step 2: Convert to fraction form
    12,085.08/16,690.04 = 8,317.95/x
  3. Step 3: Cross multiply
    12,085.08x = 16,690.04 × 8,317.95
  4. Step 4: Simplify right side
    12,085.08x = 138,826,918.22
  5. Step 5: Solve for x
    x = 138,826,918.22/12,085.08
  6. Step 6: Final answer
    x = 11,487.46

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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.