Home / 13,520.80-20,277.51-9,165.07

Finding the Fourth Proportional to 13,520.80, 20,277.51 and 9,165.07

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Solution

The fourth proportional to 13,520.80, 20,277.51 and 9,165.07 is: 13,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.80 : 20,277.51 = 9,165.07 : x
  2. Step 2: Convert to fraction form
    13,520.80/20,277.51 = 9,165.07/x
  3. Step 3: Cross multiply
    13,520.80x = 20,277.51 × 9,165.07
  4. Step 4: Simplify right side
    13,520.80x = 185,844,798.58
  5. Step 5: Solve for x
    x = 185,844,798.58/13,520.80
  6. Step 6: Final answer
    x = 13,745.10

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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.