Home / 15,636.75-21,572.34-9,258.60

Finding the Fourth Proportional to 15,636.75, 21,572.34 and 9,258.60

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Solution

The fourth proportional to 15,636.75, 21,572.34 and 9,258.60 is: 12,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.75 : 21,572.34 = 9,258.60 : x
  2. Step 2: Convert to fraction form
    15,636.75/21,572.34 = 9,258.60/x
  3. Step 3: Cross multiply
    15,636.75x = 21,572.34 × 9,258.60
  4. Step 4: Simplify right side
    15,636.75x = 199,729,667.12
  5. Step 5: Solve for x
    x = 199,729,667.12/15,636.75
  6. Step 6: Final answer
    x = 12,773.09

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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.