Home / 13,009.14-19,515.74-4,242.02

Finding the Fourth Proportional to 13,009.14, 19,515.74 and 4,242.02

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Solution

The fourth proportional to 13,009.14, 19,515.74 and 4,242.02 is: 6,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.14 : 19,515.74 = 4,242.02 : x
  2. Step 2: Convert to fraction form
    13,009.14/19,515.74 = 4,242.02/x
  3. Step 3: Cross multiply
    13,009.14x = 19,515.74 × 4,242.02
  4. Step 4: Simplify right side
    13,009.14x = 82,786,040.61
  5. Step 5: Solve for x
    x = 82,786,040.61/13,009.14
  6. Step 6: Final answer
    x = 6,363.68

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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.