Home / 13,700.73-20,552.01-3,840.40

Finding the Fourth Proportional to 13,700.73, 20,552.01 and 3,840.40

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Solution

The fourth proportional to 13,700.73, 20,552.01 and 3,840.40 is: 5,760.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.73 : 20,552.01 = 3,840.40 : x
  2. Step 2: Convert to fraction form
    13,700.73/20,552.01 = 3,840.40/x
  3. Step 3: Cross multiply
    13,700.73x = 20,552.01 × 3,840.40
  4. Step 4: Simplify right side
    13,700.73x = 78,927,939.20
  5. Step 5: Solve for x
    x = 78,927,939.20/13,700.73
  6. Step 6: Final answer
    x = 5,760.86

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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.