Home / 11,818.42-16,309.43-6,513.19

Finding the Fourth Proportional to 11,818.42, 16,309.43 and 6,513.19

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Solution

The fourth proportional to 11,818.42, 16,309.43 and 6,513.19 is: 8,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.42 : 16,309.43 = 6,513.19 : x
  2. Step 2: Convert to fraction form
    11,818.42/16,309.43 = 6,513.19/x
  3. Step 3: Cross multiply
    11,818.42x = 16,309.43 × 6,513.19
  4. Step 4: Simplify right side
    11,818.42x = 106,226,416.38
  5. Step 5: Solve for x
    x = 106,226,416.38/11,818.42
  6. Step 6: Final answer
    x = 8,988.21

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Half scale
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Double scale
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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.