Home / 13,381.20-18,466.38-10,018.08

Finding the Fourth Proportional to 13,381.20, 18,466.38 and 10,018.08

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Solution

The fourth proportional to 13,381.20, 18,466.38 and 10,018.08 is: 13,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.20 : 18,466.38 = 10,018.08 : x
  2. Step 2: Convert to fraction form
    13,381.20/18,466.38 = 10,018.08/x
  3. Step 3: Cross multiply
    13,381.20x = 18,466.38 × 10,018.08
  4. Step 4: Simplify right side
    13,381.20x = 184,997,672.15
  5. Step 5: Solve for x
    x = 184,997,672.15/13,381.20
  6. Step 6: Final answer
    x = 13,825.19

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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.