Home / 9,215.28-12,719.52-6,076.08

Finding the Fourth Proportional to 9,215.28, 12,719.52 and 6,076.08

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Solution

The fourth proportional to 9,215.28, 12,719.52 and 6,076.08 is: 8,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.28 : 12,719.52 = 6,076.08 : x
  2. Step 2: Convert to fraction form
    9,215.28/12,719.52 = 6,076.08/x
  3. Step 3: Cross multiply
    9,215.28x = 12,719.52 × 6,076.08
  4. Step 4: Simplify right side
    9,215.28x = 77,284,821.08
  5. Step 5: Solve for x
    x = 77,284,821.08/9,215.28
  6. Step 6: Final answer
    x = 8,386.59

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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.