Home / 11,318.31-15,618.06-6,281.19

Finding the Fourth Proportional to 11,318.31, 15,618.06 and 6,281.19

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Solution

The fourth proportional to 11,318.31, 15,618.06 and 6,281.19 is: 8,667.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.31 : 15,618.06 = 6,281.19 : x
  2. Step 2: Convert to fraction form
    11,318.31/15,618.06 = 6,281.19/x
  3. Step 3: Cross multiply
    11,318.31x = 15,618.06 × 6,281.19
  4. Step 4: Simplify right side
    11,318.31x = 98,100,002.29
  5. Step 5: Solve for x
    x = 98,100,002.29/11,318.31
  6. Step 6: Final answer
    x = 8,667.37

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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.