Home / 14,667.90-20,236.74-9,365.78

Finding the Fourth Proportional to 14,667.90, 20,236.74 and 9,365.78

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Solution

The fourth proportional to 14,667.90, 20,236.74 and 9,365.78 is: 12,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,667.90 : 20,236.74 = 9,365.78 : x
  2. Step 2: Convert to fraction form
    14,667.90/20,236.74 = 9,365.78/x
  3. Step 3: Cross multiply
    14,667.90x = 20,236.74 × 9,365.78
  4. Step 4: Simplify right side
    14,667.90x = 189,532,753.57
  5. Step 5: Solve for x
    x = 189,532,753.57/14,667.90
  6. Step 6: Final answer
    x = 12,921.60

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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.