Home / 18,267.80-25,209.60-9,884.32

Finding the Fourth Proportional to 18,267.80, 25,209.60 and 9,884.32

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Solution

The fourth proportional to 18,267.80, 25,209.60 and 9,884.32 is: 13,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.80 : 25,209.60 = 9,884.32 : x
  2. Step 2: Convert to fraction form
    18,267.80/25,209.60 = 9,884.32/x
  3. Step 3: Cross multiply
    18,267.80x = 25,209.60 × 9,884.32
  4. Step 4: Simplify right side
    18,267.80x = 249,179,753.47
  5. Step 5: Solve for x
    x = 249,179,753.47/18,267.80
  6. Step 6: Final answer
    x = 13,640.38

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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.