Home / 13,119.06-19,678.14-4,353.75

Finding the Fourth Proportional to 13,119.06, 19,678.14 and 4,353.75

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Solution

The fourth proportional to 13,119.06, 19,678.14 and 4,353.75 is: 6,530.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.06 : 19,678.14 = 4,353.75 : x
  2. Step 2: Convert to fraction form
    13,119.06/19,678.14 = 4,353.75/x
  3. Step 3: Cross multiply
    13,119.06x = 19,678.14 × 4,353.75
  4. Step 4: Simplify right side
    13,119.06x = 85,673,702.03
  5. Step 5: Solve for x
    x = 85,673,702.03/13,119.06
  6. Step 6: Final answer
    x = 6,530.47

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1.5x scale

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.