Home / 15,620.99-21,556.41-9,332.15

Finding the Fourth Proportional to 15,620.99, 21,556.41 and 9,332.15

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Solution

The fourth proportional to 15,620.99, 21,556.41 and 9,332.15 is: 12,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.99 : 21,556.41 = 9,332.15 : x
  2. Step 2: Convert to fraction form
    15,620.99/21,556.41 = 9,332.15/x
  3. Step 3: Cross multiply
    15,620.99x = 21,556.41 × 9,332.15
  4. Step 4: Simplify right side
    15,620.99x = 201,167,651.58
  5. Step 5: Solve for x
    x = 201,167,651.58/15,620.99
  6. Step 6: Final answer
    x = 12,878.03

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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.