Home / 11,286.88-15,576.06-6,506.74

Finding the Fourth Proportional to 11,286.88, 15,576.06 and 6,506.74

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Solution

The fourth proportional to 11,286.88, 15,576.06 and 6,506.74 is: 8,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.88 : 15,576.06 = 6,506.74 : x
  2. Step 2: Convert to fraction form
    11,286.88/15,576.06 = 6,506.74/x
  3. Step 3: Cross multiply
    11,286.88x = 15,576.06 × 6,506.74
  4. Step 4: Simplify right side
    11,286.88x = 101,349,416.51
  5. Step 5: Solve for x
    x = 101,349,416.51/11,286.88
  6. Step 6: Final answer
    x = 8,979.40

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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.