Home / 11,331.69-15,633.37-8,354.59

Finding the Fourth Proportional to 11,331.69, 15,633.37 and 8,354.59

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Solution

The fourth proportional to 11,331.69, 15,633.37 and 8,354.59 is: 11,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.69 : 15,633.37 = 8,354.59 : x
  2. Step 2: Convert to fraction form
    11,331.69/15,633.37 = 8,354.59/x
  3. Step 3: Cross multiply
    11,331.69x = 15,633.37 × 8,354.59
  4. Step 4: Simplify right side
    11,331.69x = 130,610,354.90
  5. Step 5: Solve for x
    x = 130,610,354.90/11,331.69
  6. Step 6: Final answer
    x = 11,526.11

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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.