Home / 15,040.26-20,752.09-8,989.36

Finding the Fourth Proportional to 15,040.26, 20,752.09 and 8,989.36

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Solution

The fourth proportional to 15,040.26, 20,752.09 and 8,989.36 is: 12,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.26 : 20,752.09 = 8,989.36 : x
  2. Step 2: Convert to fraction form
    15,040.26/20,752.09 = 8,989.36/x
  3. Step 3: Cross multiply
    15,040.26x = 20,752.09 × 8,989.36
  4. Step 4: Simplify right side
    15,040.26x = 186,548,007.76
  5. Step 5: Solve for x
    x = 186,548,007.76/15,040.26
  6. Step 6: Final answer
    x = 12,403.24

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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.