Home / 13,436.91-20,160.81-4,677.96

Finding the Fourth Proportional to 13,436.91, 20,160.81 and 4,677.96

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Solution

The fourth proportional to 13,436.91, 20,160.81 and 4,677.96 is: 7,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.91 : 20,160.81 = 4,677.96 : x
  2. Step 2: Convert to fraction form
    13,436.91/20,160.81 = 4,677.96/x
  3. Step 3: Cross multiply
    13,436.91x = 20,160.81 × 4,677.96
  4. Step 4: Simplify right side
    13,436.91x = 94,311,462.75
  5. Step 5: Solve for x
    x = 94,311,462.75/13,436.91
  6. Step 6: Final answer
    x = 7,018.84

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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.