Home / 18,890.21-26,069.36-10,930.89

Finding the Fourth Proportional to 18,890.21, 26,069.36 and 10,930.89

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Solution

The fourth proportional to 18,890.21, 26,069.36 and 10,930.89 is: 15,085.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.21 : 26,069.36 = 10,930.89 : x
  2. Step 2: Convert to fraction form
    18,890.21/26,069.36 = 10,930.89/x
  3. Step 3: Cross multiply
    18,890.21x = 26,069.36 × 10,930.89
  4. Step 4: Simplify right side
    18,890.21x = 284,961,306.53
  5. Step 5: Solve for x
    x = 284,961,306.53/18,890.21
  6. Step 6: Final answer
    x = 15,085.13

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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.