Home / 9,117.08-12,568.74-6,881.48

Finding the Fourth Proportional to 9,117.08, 12,568.74 and 6,881.48

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Solution

The fourth proportional to 9,117.08, 12,568.74 and 6,881.48 is: 9,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.08 : 12,568.74 = 6,881.48 : x
  2. Step 2: Convert to fraction form
    9,117.08/12,568.74 = 6,881.48/x
  3. Step 3: Cross multiply
    9,117.08x = 12,568.74 × 6,881.48
  4. Step 4: Simplify right side
    9,117.08x = 86,491,532.94
  5. Step 5: Solve for x
    x = 86,491,532.94/9,117.08
  6. Step 6: Final answer
    x = 9,486.76

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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.