Home / 11,318.16-15,618.64-6,282.60

Finding the Fourth Proportional to 11,318.16, 15,618.64 and 6,282.60

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Solution

The fourth proportional to 11,318.16, 15,618.64 and 6,282.60 is: 8,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.16 : 15,618.64 = 6,282.60 : x
  2. Step 2: Convert to fraction form
    11,318.16/15,618.64 = 6,282.60/x
  3. Step 3: Cross multiply
    11,318.16x = 15,618.64 × 6,282.60
  4. Step 4: Simplify right side
    11,318.16x = 98,125,667.66
  5. Step 5: Solve for x
    x = 98,125,667.66/11,318.16
  6. Step 6: Final answer
    x = 8,669.75

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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.