Home / 13,094.19-18,076.16-8,381.21

Finding the Fourth Proportional to 13,094.19, 18,076.16 and 8,381.21

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Solution

The fourth proportional to 13,094.19, 18,076.16 and 8,381.21 is: 11,570.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.19 : 18,076.16 = 8,381.21 : x
  2. Step 2: Convert to fraction form
    13,094.19/18,076.16 = 8,381.21/x
  3. Step 3: Cross multiply
    13,094.19x = 18,076.16 × 8,381.21
  4. Step 4: Simplify right side
    13,094.19x = 151,500,023.53
  5. Step 5: Solve for x
    x = 151,500,023.53/13,094.19
  6. Step 6: Final answer
    x = 11,570.02

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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.