Home / 19,657.11-27,136.01-12,587.57

Finding the Fourth Proportional to 19,657.11, 27,136.01 and 12,587.57

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Solution

The fourth proportional to 19,657.11, 27,136.01 and 12,587.57 is: 17,376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.11 : 27,136.01 = 12,587.57 : x
  2. Step 2: Convert to fraction form
    19,657.11/27,136.01 = 12,587.57/x
  3. Step 3: Cross multiply
    19,657.11x = 27,136.01 × 12,587.57
  4. Step 4: Simplify right side
    19,657.11x = 341,576,357.56
  5. Step 5: Solve for x
    x = 341,576,357.56/19,657.11
  6. Step 6: Final answer
    x = 17,376.73

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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.