Home / 18,316.80-25,277.12-9,933.28

Finding the Fourth Proportional to 18,316.80, 25,277.12 and 9,933.28

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Solution

The fourth proportional to 18,316.80, 25,277.12 and 9,933.28 is: 13,707.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,316.80 : 25,277.12 = 9,933.28 : x
  2. Step 2: Convert to fraction form
    18,316.80/25,277.12 = 9,933.28/x
  3. Step 3: Cross multiply
    18,316.80x = 25,277.12 × 9,933.28
  4. Step 4: Simplify right side
    18,316.80x = 251,084,710.55
  5. Step 5: Solve for x
    x = 251,084,710.55/18,316.80
  6. Step 6: Final answer
    x = 13,707.89

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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.