Home / 15,433.96-21,298.84-8,360.38

Finding the Fourth Proportional to 15,433.96, 21,298.84 and 8,360.38

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Solution

The fourth proportional to 15,433.96, 21,298.84 and 8,360.38 is: 11,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.96 : 21,298.84 = 8,360.38 : x
  2. Step 2: Convert to fraction form
    15,433.96/21,298.84 = 8,360.38/x
  3. Step 3: Cross multiply
    15,433.96x = 21,298.84 × 8,360.38
  4. Step 4: Simplify right side
    15,433.96x = 178,066,395.96
  5. Step 5: Solve for x
    x = 178,066,395.96/15,433.96
  6. Step 6: Final answer
    x = 11,537.31

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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.