Home / 10,289.69-15,418.32-7,955.41

Finding the Fourth Proportional to 10,289.69, 15,418.32 and 7,955.41

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Solution

The fourth proportional to 10,289.69, 15,418.32 and 7,955.41 is: 11,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.69 : 15,418.32 = 7,955.41 : x
  2. Step 2: Convert to fraction form
    10,289.69/15,418.32 = 7,955.41/x
  3. Step 3: Cross multiply
    10,289.69x = 15,418.32 × 7,955.41
  4. Step 4: Simplify right side
    10,289.69x = 122,659,057.11
  5. Step 5: Solve for x
    x = 122,659,057.11/10,289.69
  6. Step 6: Final answer
    x = 11,920.58

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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.