Home / 13,746.38-18,970.04-8,441.15

Finding the Fourth Proportional to 13,746.38, 18,970.04 and 8,441.15

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Solution

The fourth proportional to 13,746.38, 18,970.04 and 8,441.15 is: 11,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.38 : 18,970.04 = 8,441.15 : x
  2. Step 2: Convert to fraction form
    13,746.38/18,970.04 = 8,441.15/x
  3. Step 3: Cross multiply
    13,746.38x = 18,970.04 × 8,441.15
  4. Step 4: Simplify right side
    13,746.38x = 160,128,879.40
  5. Step 5: Solve for x
    x = 160,128,879.40/13,746.38
  6. Step 6: Final answer
    x = 11,648.81

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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.