Home / 13,365.15-20,033.64-4,478.19

Finding the Fourth Proportional to 13,365.15, 20,033.64 and 4,478.19

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Solution

The fourth proportional to 13,365.15, 20,033.64 and 4,478.19 is: 6,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.15 : 20,033.64 = 4,478.19 : x
  2. Step 2: Convert to fraction form
    13,365.15/20,033.64 = 4,478.19/x
  3. Step 3: Cross multiply
    13,365.15x = 20,033.64 × 4,478.19
  4. Step 4: Simplify right side
    13,365.15x = 89,714,446.31
  5. Step 5: Solve for x
    x = 89,714,446.31/13,365.15
  6. Step 6: Final answer
    x = 6,712.57

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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.