Home / 15,381.36-21,226.32-9,093.60

Finding the Fourth Proportional to 15,381.36, 21,226.32 and 9,093.60

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Solution

The fourth proportional to 15,381.36, 21,226.32 and 9,093.60 is: 12,549.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381.36 : 21,226.32 = 9,093.60 : x
  2. Step 2: Convert to fraction form
    15,381.36/21,226.32 = 9,093.60/x
  3. Step 3: Cross multiply
    15,381.36x = 21,226.32 × 9,093.60
  4. Step 4: Simplify right side
    15,381.36x = 193,023,663.55
  5. Step 5: Solve for x
    x = 193,023,663.55/15,381.36
  6. Step 6: Final answer
    x = 12,549.19

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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.