Home / 15,258.72-21,049.60-9,600.48

Finding the Fourth Proportional to 15,258.72, 21,049.60 and 9,600.48

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Solution

The fourth proportional to 15,258.72, 21,049.60 and 9,600.48 is: 13,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.72 : 21,049.60 = 9,600.48 : x
  2. Step 2: Convert to fraction form
    15,258.72/21,049.60 = 9,600.48/x
  3. Step 3: Cross multiply
    15,258.72x = 21,049.60 × 9,600.48
  4. Step 4: Simplify right side
    15,258.72x = 202,086,263.81
  5. Step 5: Solve for x
    x = 202,086,263.81/15,258.72
  6. Step 6: Final answer
    x = 13,243.99

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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.