Home / 15,433.72-21,298.64-8,360.14

Finding the Fourth Proportional to 15,433.72, 21,298.64 and 8,360.14

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Solution

The fourth proportional to 15,433.72, 21,298.64 and 8,360.14 is: 11,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.72 : 21,298.64 = 8,360.14 : x
  2. Step 2: Convert to fraction form
    15,433.72/21,298.64 = 8,360.14/x
  3. Step 3: Cross multiply
    15,433.72x = 21,298.64 × 8,360.14
  4. Step 4: Simplify right side
    15,433.72x = 178,059,597.03
  5. Step 5: Solve for x
    x = 178,059,597.03/15,433.72
  6. Step 6: Final answer
    x = 11,537.05

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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.