Home / 15,317.20-22,961.90-10,639.40

Finding the Fourth Proportional to 15,317.20, 22,961.90 and 10,639.40

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Solution

The fourth proportional to 15,317.20, 22,961.90 and 10,639.40 is: 15,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.20 : 22,961.90 = 10,639.40 : x
  2. Step 2: Convert to fraction form
    15,317.20/22,961.90 = 10,639.40/x
  3. Step 3: Cross multiply
    15,317.20x = 22,961.90 × 10,639.40
  4. Step 4: Simplify right side
    15,317.20x = 244,300,838.86
  5. Step 5: Solve for x
    x = 244,300,838.86/15,317.20
  6. Step 6: Final answer
    x = 15,949.44

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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.