Home / 19,121.21-26,386.73-10,945.02

Finding the Fourth Proportional to 19,121.21, 26,386.73 and 10,945.02

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Solution

The fourth proportional to 19,121.21, 26,386.73 and 10,945.02 is: 15,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.21 : 26,386.73 = 10,945.02 : x
  2. Step 2: Convert to fraction form
    19,121.21/26,386.73 = 10,945.02/x
  3. Step 3: Cross multiply
    19,121.21x = 26,386.73 × 10,945.02
  4. Step 4: Simplify right side
    19,121.21x = 288,803,232.86
  5. Step 5: Solve for x
    x = 288,803,232.86/19,121.21
  6. Step 6: Final answer
    x = 15,103.81

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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.