Home / 13,305.17-18,361.25-7,337.05

Finding the Fourth Proportional to 13,305.17, 18,361.25 and 7,337.05

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Solution

The fourth proportional to 13,305.17, 18,361.25 and 7,337.05 is: 10,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.17 : 18,361.25 = 7,337.05 : x
  2. Step 2: Convert to fraction form
    13,305.17/18,361.25 = 7,337.05/x
  3. Step 3: Cross multiply
    13,305.17x = 18,361.25 × 7,337.05
  4. Step 4: Simplify right side
    13,305.17x = 134,717,409.31
  5. Step 5: Solve for x
    x = 134,717,409.31/13,305.17
  6. Step 6: Final answer
    x = 10,125.20

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Double scale
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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.