Home / 19,913.76-27,469.56-12,448.80

Finding the Fourth Proportional to 19,913.76, 27,469.56 and 12,448.80

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Solution

The fourth proportional to 19,913.76, 27,469.56 and 12,448.80 is: 17,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.76 : 27,469.56 = 12,448.80 : x
  2. Step 2: Convert to fraction form
    19,913.76/27,469.56 = 12,448.80/x
  3. Step 3: Cross multiply
    19,913.76x = 27,469.56 × 12,448.80
  4. Step 4: Simplify right side
    19,913.76x = 341,963,058.53
  5. Step 5: Solve for x
    x = 341,963,058.53/19,913.76
  6. Step 6: Final answer
    x = 17,172.20

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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.