Home / 13,754.48-20,652.78-12,124.76

Finding the Fourth Proportional to 13,754.48, 20,652.78 and 12,124.76

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Solution

The fourth proportional to 13,754.48, 20,652.78 and 12,124.76 is: 18,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.48 : 20,652.78 = 12,124.76 : x
  2. Step 2: Convert to fraction form
    13,754.48/20,652.78 = 12,124.76/x
  3. Step 3: Cross multiply
    13,754.48x = 20,652.78 × 12,124.76
  4. Step 4: Simplify right side
    13,754.48x = 250,410,000.83
  5. Step 5: Solve for x
    x = 250,410,000.83/13,754.48
  6. Step 6: Final answer
    x = 18,205.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.