Home / 18,948.90-26,147.34-10,989.48

Finding the Fourth Proportional to 18,948.90, 26,147.34 and 10,989.48

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Solution

The fourth proportional to 18,948.90, 26,147.34 and 10,989.48 is: 15,164.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.90 : 26,147.34 = 10,989.48 : x
  2. Step 2: Convert to fraction form
    18,948.90/26,147.34 = 10,989.48/x
  3. Step 3: Cross multiply
    18,948.90x = 26,147.34 × 10,989.48
  4. Step 4: Simplify right side
    18,948.90x = 287,345,669.98
  5. Step 5: Solve for x
    x = 287,345,669.98/18,948.90
  6. Step 6: Final answer
    x = 15,164.24

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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.