Home / 9,719.20-13,405.39-6,356.62

Finding the Fourth Proportional to 9,719.20, 13,405.39 and 6,356.62

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Solution

The fourth proportional to 9,719.20, 13,405.39 and 6,356.62 is: 8,767.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.20 : 13,405.39 = 6,356.62 : x
  2. Step 2: Convert to fraction form
    9,719.20/13,405.39 = 6,356.62/x
  3. Step 3: Cross multiply
    9,719.20x = 13,405.39 × 6,356.62
  4. Step 4: Simplify right side
    9,719.20x = 85,212,970.18
  5. Step 5: Solve for x
    x = 85,212,970.18/9,719.20
  6. Step 6: Final answer
    x = 8,767.49

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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.