Home / 18,948.36-26,146.26-10,989.48

Finding the Fourth Proportional to 18,948.36, 26,146.26 and 10,989.48

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Solution

The fourth proportional to 18,948.36, 26,146.26 and 10,989.48 is: 15,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.36 : 26,146.26 = 10,989.48 : x
  2. Step 2: Convert to fraction form
    18,948.36/26,146.26 = 10,989.48/x
  3. Step 3: Cross multiply
    18,948.36x = 26,146.26 × 10,989.48
  4. Step 4: Simplify right side
    18,948.36x = 287,333,801.34
  5. Step 5: Solve for x
    x = 287,333,801.34/18,948.36
  6. Step 6: Final answer
    x = 15,164.05

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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.