Home / 13,736.47-20,590.32-6,345.78

Finding the Fourth Proportional to 13,736.47, 20,590.32 and 6,345.78

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Solution

The fourth proportional to 13,736.47, 20,590.32 and 6,345.78 is: 9,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.47 : 20,590.32 = 6,345.78 : x
  2. Step 2: Convert to fraction form
    13,736.47/20,590.32 = 6,345.78/x
  3. Step 3: Cross multiply
    13,736.47x = 20,590.32 × 6,345.78
  4. Step 4: Simplify right side
    13,736.47x = 130,661,551.74
  5. Step 5: Solve for x
    x = 130,661,551.74/13,736.47
  6. Step 6: Final answer
    x = 9,512.02

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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.