Home / 13,235.40-19,845-5,341.55

Finding the Fourth Proportional to 13,235.40, 19,845 and 5,341.55

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Solution

The fourth proportional to 13,235.40, 19,845 and 5,341.55 is: 8,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.40 : 19,845 = 5,341.55 : x
  2. Step 2: Convert to fraction form
    13,235.40/19,845 = 5,341.55/x
  3. Step 3: Cross multiply
    13,235.40x = 19,845 × 5,341.55
  4. Step 4: Simplify right side
    13,235.40x = 106,002,960.53
  5. Step 5: Solve for x
    x = 106,002,960.53/13,235.40
  6. Step 6: Final answer
    x = 8,009.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.