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Finding the Fourth Proportional to 15,040.37, 20,748.83 and 9,736.90

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Solution

The fourth proportional to 15,040.37, 20,748.83 and 9,736.90 is: 13,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.37 : 20,748.83 = 9,736.90 : x
  2. Step 2: Convert to fraction form
    15,040.37/20,748.83 = 9,736.90/x
  3. Step 3: Cross multiply
    15,040.37x = 20,748.83 × 9,736.90
  4. Step 4: Simplify right side
    15,040.37x = 202,029,182.27
  5. Step 5: Solve for x
    x = 202,029,182.27/15,040.37
  6. Step 6: Final answer
    x = 13,432.46

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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.