Home / 13,437.72-20,156.62-4,077.81

Finding the Fourth Proportional to 13,437.72, 20,156.62 and 4,077.81

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Solution

The fourth proportional to 13,437.72, 20,156.62 and 4,077.81 is: 6,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.72 : 20,156.62 = 4,077.81 : x
  2. Step 2: Convert to fraction form
    13,437.72/20,156.62 = 4,077.81/x
  3. Step 3: Cross multiply
    13,437.72x = 20,156.62 × 4,077.81
  4. Step 4: Simplify right side
    13,437.72x = 82,194,846.21
  5. Step 5: Solve for x
    x = 82,194,846.21/13,437.72
  6. Step 6: Final answer
    x = 6,116.73

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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.