Home / 12,818.39-19,220.88-5,792.36

Finding the Fourth Proportional to 12,818.39, 19,220.88 and 5,792.36

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Solution

The fourth proportional to 12,818.39, 19,220.88 and 5,792.36 is: 8,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.39 : 19,220.88 = 5,792.36 : x
  2. Step 2: Convert to fraction form
    12,818.39/19,220.88 = 5,792.36/x
  3. Step 3: Cross multiply
    12,818.39x = 19,220.88 × 5,792.36
  4. Step 4: Simplify right side
    12,818.39x = 111,334,256.48
  5. Step 5: Solve for x
    x = 111,334,256.48/12,818.39
  6. Step 6: Final answer
    x = 8,685.51

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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.