Home / 8,867.90-12,239.81-5,513.24

Finding the Fourth Proportional to 8,867.90, 12,239.81 and 5,513.24

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Solution

The fourth proportional to 8,867.90, 12,239.81 and 5,513.24 is: 7,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.90 : 12,239.81 = 5,513.24 : x
  2. Step 2: Convert to fraction form
    8,867.90/12,239.81 = 5,513.24/x
  3. Step 3: Cross multiply
    8,867.90x = 12,239.81 × 5,513.24
  4. Step 4: Simplify right side
    8,867.90x = 67,480,921.32
  5. Step 5: Solve for x
    x = 67,480,921.32/8,867.90
  6. Step 6: Final answer
    x = 7,609.58

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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.