Home / 16,478.91-22,737.44-9,405.15

Finding the Fourth Proportional to 16,478.91, 22,737.44 and 9,405.15

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Solution

The fourth proportional to 16,478.91, 22,737.44 and 9,405.15 is: 12,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,478.91 : 22,737.44 = 9,405.15 : x
  2. Step 2: Convert to fraction form
    16,478.91/22,737.44 = 9,405.15/x
  3. Step 3: Cross multiply
    16,478.91x = 22,737.44 × 9,405.15
  4. Step 4: Simplify right side
    16,478.91x = 213,848,986.79
  5. Step 5: Solve for x
    x = 213,848,986.79/16,478.91
  6. Step 6: Final answer
    x = 12,977.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.