Home / 10,447.21-15,671.32-3,426.60

Finding the Fourth Proportional to 10,447.21, 15,671.32 and 3,426.60

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Solution

The fourth proportional to 10,447.21, 15,671.32 and 3,426.60 is: 5,140.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.21 : 15,671.32 = 3,426.60 : x
  2. Step 2: Convert to fraction form
    10,447.21/15,671.32 = 3,426.60/x
  3. Step 3: Cross multiply
    10,447.21x = 15,671.32 × 3,426.60
  4. Step 4: Simplify right side
    10,447.21x = 53,699,345.11
  5. Step 5: Solve for x
    x = 53,699,345.11/10,447.21
  6. Step 6: Final answer
    x = 5,140.07

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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.