Home / 18,972.36-26,192.14-11,420.53

Finding the Fourth Proportional to 18,972.36, 26,192.14 and 11,420.53

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Solution

The fourth proportional to 18,972.36, 26,192.14 and 11,420.53 is: 15,766.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.36 : 26,192.14 = 11,420.53 : x
  2. Step 2: Convert to fraction form
    18,972.36/26,192.14 = 11,420.53/x
  3. Step 3: Cross multiply
    18,972.36x = 26,192.14 × 11,420.53
  4. Step 4: Simplify right side
    18,972.36x = 299,128,026.60
  5. Step 5: Solve for x
    x = 299,128,026.60/18,972.36
  6. Step 6: Final answer
    x = 15,766.52

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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.