Home / 9,195.30-12,688.74-5,217.06

Finding the Fourth Proportional to 9,195.30, 12,688.74 and 5,217.06

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Solution

The fourth proportional to 9,195.30, 12,688.74 and 5,217.06 is: 7,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,195.30 : 12,688.74 = 5,217.06 : x
  2. Step 2: Convert to fraction form
    9,195.30/12,688.74 = 5,217.06/x
  3. Step 3: Cross multiply
    9,195.30x = 12,688.74 × 5,217.06
  4. Step 4: Simplify right side
    9,195.30x = 66,197,917.90
  5. Step 5: Solve for x
    x = 66,197,917.90/9,195.30
  6. Step 6: Final answer
    x = 7,199.10

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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.