Home / 13,601.58-20,400.21-5,285.40

Finding the Fourth Proportional to 13,601.58, 20,400.21 and 5,285.40

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Solution

The fourth proportional to 13,601.58, 20,400.21 and 5,285.40 is: 7,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.58 : 20,400.21 = 5,285.40 : x
  2. Step 2: Convert to fraction form
    13,601.58/20,400.21 = 5,285.40/x
  3. Step 3: Cross multiply
    13,601.58x = 20,400.21 × 5,285.40
  4. Step 4: Simplify right side
    13,601.58x = 107,823,269.93
  5. Step 5: Solve for x
    x = 107,823,269.93/13,601.58
  6. Step 6: Final answer
    x = 7,927.26

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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.