Home / 14,285.63-19,711.83-8,976.69

Finding the Fourth Proportional to 14,285.63, 19,711.83 and 8,976.69

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Solution

The fourth proportional to 14,285.63, 19,711.83 and 8,976.69 is: 12,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.63 : 19,711.83 = 8,976.69 : x
  2. Step 2: Convert to fraction form
    14,285.63/19,711.83 = 8,976.69/x
  3. Step 3: Cross multiply
    14,285.63x = 19,711.83 × 8,976.69
  4. Step 4: Simplify right side
    14,285.63x = 176,946,942.36
  5. Step 5: Solve for x
    x = 176,946,942.36/14,285.63
  6. Step 6: Final answer
    x = 12,386.36

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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.