Home / 13,666.15-20,501.27-4,305.18

Finding the Fourth Proportional to 13,666.15, 20,501.27 and 4,305.18

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Solution

The fourth proportional to 13,666.15, 20,501.27 and 4,305.18 is: 6,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.15 : 20,501.27 = 4,305.18 : x
  2. Step 2: Convert to fraction form
    13,666.15/20,501.27 = 4,305.18/x
  3. Step 3: Cross multiply
    13,666.15x = 20,501.27 × 4,305.18
  4. Step 4: Simplify right side
    13,666.15x = 88,261,729.08
  5. Step 5: Solve for x
    x = 88,261,729.08/13,666.15
  6. Step 6: Final answer
    x = 6,458.42

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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.