Home / 19,666.62-27,136.89-11,281.50

Finding the Fourth Proportional to 19,666.62, 27,136.89 and 11,281.50

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Solution

The fourth proportional to 19,666.62, 27,136.89 and 11,281.50 is: 15,566.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.62 : 27,136.89 = 11,281.50 : x
  2. Step 2: Convert to fraction form
    19,666.62/27,136.89 = 11,281.50/x
  3. Step 3: Cross multiply
    19,666.62x = 27,136.89 × 11,281.50
  4. Step 4: Simplify right side
    19,666.62x = 306,144,824.54
  5. Step 5: Solve for x
    x = 306,144,824.54/19,666.62
  6. Step 6: Final answer
    x = 15,566.72

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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.