Home / 13,296.96-18,356.22-9,316.62

Finding the Fourth Proportional to 13,296.96, 18,356.22 and 9,316.62

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Solution

The fourth proportional to 13,296.96, 18,356.22 and 9,316.62 is: 12,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.96 : 18,356.22 = 9,316.62 : x
  2. Step 2: Convert to fraction form
    13,296.96/18,356.22 = 9,316.62/x
  3. Step 3: Cross multiply
    13,296.96x = 18,356.22 × 9,316.62
  4. Step 4: Simplify right side
    13,296.96x = 171,017,926.38
  5. Step 5: Solve for x
    x = 171,017,926.38/13,296.96
  6. Step 6: Final answer
    x = 12,861.43

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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.