Home / 14,976.90-20,678.49-9,313.92

Finding the Fourth Proportional to 14,976.90, 20,678.49 and 9,313.92

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Solution

The fourth proportional to 14,976.90, 20,678.49 and 9,313.92 is: 12,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,976.90 : 20,678.49 = 9,313.92 : x
  2. Step 2: Convert to fraction form
    14,976.90/20,678.49 = 9,313.92/x
  3. Step 3: Cross multiply
    14,976.90x = 20,678.49 × 9,313.92
  4. Step 4: Simplify right side
    14,976.90x = 192,597,801.58
  5. Step 5: Solve for x
    x = 192,597,801.58/14,976.90
  6. Step 6: Final answer
    x = 12,859.66

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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.