Home / 17,121.36-25,689.36-5,435.52

Finding the Fourth Proportional to 17,121.36, 25,689.36 and 5,435.52

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Solution

The fourth proportional to 17,121.36, 25,689.36 and 5,435.52 is: 8,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121.36 : 25,689.36 = 5,435.52 : x
  2. Step 2: Convert to fraction form
    17,121.36/25,689.36 = 5,435.52/x
  3. Step 3: Cross multiply
    17,121.36x = 25,689.36 × 5,435.52
  4. Step 4: Simplify right side
    17,121.36x = 139,635,030.07
  5. Step 5: Solve for x
    x = 139,635,030.07/17,121.36
  6. Step 6: Final answer
    x = 8,155.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.