Home / 15,610.84-21,538.62-9,320.92

Finding the Fourth Proportional to 15,610.84, 21,538.62 and 9,320.92

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Solution

The fourth proportional to 15,610.84, 21,538.62 and 9,320.92 is: 12,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.84 : 21,538.62 = 9,320.92 : x
  2. Step 2: Convert to fraction form
    15,610.84/21,538.62 = 9,320.92/x
  3. Step 3: Cross multiply
    15,610.84x = 21,538.62 × 9,320.92
  4. Step 4: Simplify right side
    15,610.84x = 200,759,753.93
  5. Step 5: Solve for x
    x = 200,759,753.93/15,610.84
  6. Step 6: Final answer
    x = 12,860.28

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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.