Home / 15,483.60-21,369.21-9,195.99

Finding the Fourth Proportional to 15,483.60, 21,369.21 and 9,195.99

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Solution

The fourth proportional to 15,483.60, 21,369.21 and 9,195.99 is: 12,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.60 : 21,369.21 = 9,195.99 : x
  2. Step 2: Convert to fraction form
    15,483.60/21,369.21 = 9,195.99/x
  3. Step 3: Cross multiply
    15,483.60x = 21,369.21 × 9,195.99
  4. Step 4: Simplify right side
    15,483.60x = 196,511,041.47
  5. Step 5: Solve for x
    x = 196,511,041.47/15,483.60
  6. Step 6: Final answer
    x = 12,691.56

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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.