Home / 13,511.31-20,266.70-6,110.60

Finding the Fourth Proportional to 13,511.31, 20,266.70 and 6,110.60

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Solution

The fourth proportional to 13,511.31, 20,266.70 and 6,110.60 is: 9,165.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.31 : 20,266.70 = 6,110.60 : x
  2. Step 2: Convert to fraction form
    13,511.31/20,266.70 = 6,110.60/x
  3. Step 3: Cross multiply
    13,511.31x = 20,266.70 × 6,110.60
  4. Step 4: Simplify right side
    13,511.31x = 123,841,565.13
  5. Step 5: Solve for x
    x = 123,841,565.13/13,511.31
  6. Step 6: Final answer
    x = 9,165.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.