Home / 13,403.74-20,102.96-4,518.19

Finding the Fourth Proportional to 13,403.74, 20,102.96 and 4,518.19

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Solution

The fourth proportional to 13,403.74, 20,102.96 and 4,518.19 is: 6,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.74 : 20,102.96 = 4,518.19 : x
  2. Step 2: Convert to fraction form
    13,403.74/20,102.96 = 4,518.19/x
  3. Step 3: Cross multiply
    13,403.74x = 20,102.96 × 4,518.19
  4. Step 4: Simplify right side
    13,403.74x = 90,828,960.02
  5. Step 5: Solve for x
    x = 90,828,960.02/13,403.74
  6. Step 6: Final answer
    x = 6,776.39

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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.