Home / 18,834.69-25,990.08-11,280.89

Finding the Fourth Proportional to 18,834.69, 25,990.08 and 11,280.89

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Solution

The fourth proportional to 18,834.69, 25,990.08 and 11,280.89 is: 15,566.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.69 : 25,990.08 = 11,280.89 : x
  2. Step 2: Convert to fraction form
    18,834.69/25,990.08 = 11,280.89/x
  3. Step 3: Cross multiply
    18,834.69x = 25,990.08 × 11,280.89
  4. Step 4: Simplify right side
    18,834.69x = 293,191,131.82
  5. Step 5: Solve for x
    x = 293,191,131.82/18,834.69
  6. Step 6: Final answer
    x = 15,566.55

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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.