Home / 13,178.28-19,765.35-4,293.93

Finding the Fourth Proportional to 13,178.28, 19,765.35 and 4,293.93

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Solution

The fourth proportional to 13,178.28, 19,765.35 and 4,293.93 is: 6,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.28 : 19,765.35 = 4,293.93 : x
  2. Step 2: Convert to fraction form
    13,178.28/19,765.35 = 4,293.93/x
  3. Step 3: Cross multiply
    13,178.28x = 19,765.35 × 4,293.93
  4. Step 4: Simplify right side
    13,178.28x = 84,871,029.33
  5. Step 5: Solve for x
    x = 84,871,029.33/13,178.28
  6. Step 6: Final answer
    x = 6,440.22

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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.