Home / 15,933.99-21,988.47-8,860.66

Finding the Fourth Proportional to 15,933.99, 21,988.47 and 8,860.66

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Solution

The fourth proportional to 15,933.99, 21,988.47 and 8,860.66 is: 12,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.99 : 21,988.47 = 8,860.66 : x
  2. Step 2: Convert to fraction form
    15,933.99/21,988.47 = 8,860.66/x
  3. Step 3: Cross multiply
    15,933.99x = 21,988.47 × 8,860.66
  4. Step 4: Simplify right side
    15,933.99x = 194,832,356.59
  5. Step 5: Solve for x
    x = 194,832,356.59/15,933.99
  6. Step 6: Final answer
    x = 12,227.47

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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.