Home / 11,818.29-16,309.35-6,513.30

Finding the Fourth Proportional to 11,818.29, 16,309.35 and 6,513.30

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Solution

The fourth proportional to 11,818.29, 16,309.35 and 6,513.30 is: 8,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.29 : 16,309.35 = 6,513.30 : x
  2. Step 2: Convert to fraction form
    11,818.29/16,309.35 = 6,513.30/x
  3. Step 3: Cross multiply
    11,818.29x = 16,309.35 × 6,513.30
  4. Step 4: Simplify right side
    11,818.29x = 106,227,689.36
  5. Step 5: Solve for x
    x = 106,227,689.36/11,818.29
  6. Step 6: Final answer
    x = 8,988.41

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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.