Home / 15,365.58-21,204.87-8,651.43

Finding the Fourth Proportional to 15,365.58, 21,204.87 and 8,651.43

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Solution

The fourth proportional to 15,365.58, 21,204.87 and 8,651.43 is: 11,939.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.58 : 21,204.87 = 8,651.43 : x
  2. Step 2: Convert to fraction form
    15,365.58/21,204.87 = 8,651.43/x
  3. Step 3: Cross multiply
    15,365.58x = 21,204.87 × 8,651.43
  4. Step 4: Simplify right side
    15,365.58x = 183,452,448.46
  5. Step 5: Solve for x
    x = 183,452,448.46/15,365.58
  6. Step 6: Final answer
    x = 11,939.18

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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.