Home / 13,610.61-18,784.68-8,308.50

Finding the Fourth Proportional to 13,610.61, 18,784.68 and 8,308.50

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Solution

The fourth proportional to 13,610.61, 18,784.68 and 8,308.50 is: 11,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.61 : 18,784.68 = 8,308.50 : x
  2. Step 2: Convert to fraction form
    13,610.61/18,784.68 = 8,308.50/x
  3. Step 3: Cross multiply
    13,610.61x = 18,784.68 × 8,308.50
  4. Step 4: Simplify right side
    13,610.61x = 156,072,513.78
  5. Step 5: Solve for x
    x = 156,072,513.78/13,610.61
  6. Step 6: Final answer
    x = 11,466.97

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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.