Home / 15,246.12-21,039.48-8,531.64

Finding the Fourth Proportional to 15,246.12, 21,039.48 and 8,531.64

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Solution

The fourth proportional to 15,246.12, 21,039.48 and 8,531.64 is: 11,773.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,246.12 : 21,039.48 = 8,531.64 : x
  2. Step 2: Convert to fraction form
    15,246.12/21,039.48 = 8,531.64/x
  3. Step 3: Cross multiply
    15,246.12x = 21,039.48 × 8,531.64
  4. Step 4: Simplify right side
    15,246.12x = 179,501,269.15
  5. Step 5: Solve for x
    x = 179,501,269.15/15,246.12
  6. Step 6: Final answer
    x = 11,773.57

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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.