Home / 15,483.72-21,368.94-9,517.76

Finding the Fourth Proportional to 15,483.72, 21,368.94 and 9,517.76

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Solution

The fourth proportional to 15,483.72, 21,368.94 and 9,517.76 is: 13,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.72 : 21,368.94 = 9,517.76 : x
  2. Step 2: Convert to fraction form
    15,483.72/21,368.94 = 9,517.76/x
  3. Step 3: Cross multiply
    15,483.72x = 21,368.94 × 9,517.76
  4. Step 4: Simplify right side
    15,483.72x = 203,384,335.53
  5. Step 5: Solve for x
    x = 203,384,335.53/15,483.72
  6. Step 6: Final answer
    x = 13,135.37

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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.