Home / 13,465.80-18,585.40-8,163.52

Finding the Fourth Proportional to 13,465.80, 18,585.40 and 8,163.52

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Solution

The fourth proportional to 13,465.80, 18,585.40 and 8,163.52 is: 11,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.80 : 18,585.40 = 8,163.52 : x
  2. Step 2: Convert to fraction form
    13,465.80/18,585.40 = 8,163.52/x
  3. Step 3: Cross multiply
    13,465.80x = 18,585.40 × 8,163.52
  4. Step 4: Simplify right side
    13,465.80x = 151,722,284.61
  5. Step 5: Solve for x
    x = 151,722,284.61/13,465.80
  6. Step 6: Final answer
    x = 11,267.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.