Home / 18,776.04-25,902.19-10,813.65

Finding the Fourth Proportional to 18,776.04, 25,902.19 and 10,813.65

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Solution

The fourth proportional to 18,776.04, 25,902.19 and 10,813.65 is: 14,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.04 : 25,902.19 = 10,813.65 : x
  2. Step 2: Convert to fraction form
    18,776.04/25,902.19 = 10,813.65/x
  3. Step 3: Cross multiply
    18,776.04x = 25,902.19 × 10,813.65
  4. Step 4: Simplify right side
    18,776.04x = 280,097,216.89
  5. Step 5: Solve for x
    x = 280,097,216.89/18,776.04
  6. Step 6: Final answer
    x = 14,917.80

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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.