Home / 8,318.64-11,483.88-5,175.84

Finding the Fourth Proportional to 8,318.64, 11,483.88 and 5,175.84

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Solution

The fourth proportional to 8,318.64, 11,483.88 and 5,175.84 is: 7,145.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.64 : 11,483.88 = 5,175.84 : x
  2. Step 2: Convert to fraction form
    8,318.64/11,483.88 = 5,175.84/x
  3. Step 3: Cross multiply
    8,318.64x = 11,483.88 × 5,175.84
  4. Step 4: Simplify right side
    8,318.64x = 59,438,725.46
  5. Step 5: Solve for x
    x = 59,438,725.46/8,318.64
  6. Step 6: Final answer
    x = 7,145.25

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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.