Home / 11,818.58-16,309.57-6,513.40

Finding the Fourth Proportional to 11,818.58, 16,309.57 and 6,513.40

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Solution

The fourth proportional to 11,818.58, 16,309.57 and 6,513.40 is: 8,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.58 : 16,309.57 = 6,513.40 : x
  2. Step 2: Convert to fraction form
    11,818.58/16,309.57 = 6,513.40/x
  3. Step 3: Cross multiply
    11,818.58x = 16,309.57 × 6,513.40
  4. Step 4: Simplify right side
    11,818.58x = 106,230,753.24
  5. Step 5: Solve for x
    x = 106,230,753.24/11,818.58
  6. Step 6: Final answer
    x = 8,988.45

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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.