Home / 12,818.53-19,221.13-5,795.18

Finding the Fourth Proportional to 12,818.53, 19,221.13 and 5,795.18

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Solution

The fourth proportional to 12,818.53, 19,221.13 and 5,795.18 is: 8,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.53 : 19,221.13 = 5,795.18 : x
  2. Step 2: Convert to fraction form
    12,818.53/19,221.13 = 5,795.18/x
  3. Step 3: Cross multiply
    12,818.53x = 19,221.13 × 5,795.18
  4. Step 4: Simplify right side
    12,818.53x = 111,389,894.81
  5. Step 5: Solve for x
    x = 111,389,894.81/12,818.53
  6. Step 6: Final answer
    x = 8,689.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.