Home / 11,818.40-16,312.74-8,282.48

Finding the Fourth Proportional to 11,818.40, 16,312.74 and 8,282.48

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Solution

The fourth proportional to 11,818.40, 16,312.74 and 8,282.48 is: 11,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.40 : 16,312.74 = 8,282.48 : x
  2. Step 2: Convert to fraction form
    11,818.40/16,312.74 = 8,282.48/x
  3. Step 3: Cross multiply
    11,818.40x = 16,312.74 × 8,282.48
  4. Step 4: Simplify right side
    11,818.40x = 135,109,942.80
  5. Step 5: Solve for x
    x = 135,109,942.80/11,818.40
  6. Step 6: Final answer
    x = 11,432.17

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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.