Home / 15,027.28-20,738.40-9,060.87

Finding the Fourth Proportional to 15,027.28, 20,738.40 and 9,060.87

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Solution

The fourth proportional to 15,027.28, 20,738.40 and 9,060.87 is: 12,504.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,027.28 : 20,738.40 = 9,060.87 : x
  2. Step 2: Convert to fraction form
    15,027.28/20,738.40 = 9,060.87/x
  3. Step 3: Cross multiply
    15,027.28x = 20,738.40 × 9,060.87
  4. Step 4: Simplify right side
    15,027.28x = 187,907,946.41
  5. Step 5: Solve for x
    x = 187,907,946.41/15,027.28
  6. Step 6: Final answer
    x = 12,504.46

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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.