Home / 9,195.29-12,690.12-5,216.66

Finding the Fourth Proportional to 9,195.29, 12,690.12 and 5,216.66

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Solution

The fourth proportional to 9,195.29, 12,690.12 and 5,216.66 is: 7,199.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.29 : 12,690.12 = 5,216.66 : x
  2. Step 2: Convert to fraction form
    9,195.29/12,690.12 = 5,216.66/x
  3. Step 3: Cross multiply
    9,195.29x = 12,690.12 × 5,216.66
  4. Step 4: Simplify right side
    9,195.29x = 66,200,041.40
  5. Step 5: Solve for x
    x = 66,200,041.40/9,195.29
  6. Step 6: Final answer
    x = 7,199.34

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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.