Home / 10,289.50-15,431.91-2,894.68

Finding the Fourth Proportional to 10,289.50, 15,431.91 and 2,894.68

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Solution

The fourth proportional to 10,289.50, 15,431.91 and 2,894.68 is: 4,341.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.50 : 15,431.91 = 2,894.68 : x
  2. Step 2: Convert to fraction form
    10,289.50/15,431.91 = 2,894.68/x
  3. Step 3: Cross multiply
    10,289.50x = 15,431.91 × 2,894.68
  4. Step 4: Simplify right side
    10,289.50x = 44,670,441.24
  5. Step 5: Solve for x
    x = 44,670,441.24/10,289.50
  6. Step 6: Final answer
    x = 4,341.36

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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.