Home / 19,664.30-27,136.38-10,711.76

Finding the Fourth Proportional to 19,664.30, 27,136.38 and 10,711.76

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Solution

The fourth proportional to 19,664.30, 27,136.38 and 10,711.76 is: 14,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.30 : 27,136.38 = 10,711.76 : x
  2. Step 2: Convert to fraction form
    19,664.30/27,136.38 = 10,711.76/x
  3. Step 3: Cross multiply
    19,664.30x = 27,136.38 × 10,711.76
  4. Step 4: Simplify right side
    19,664.30x = 290,678,389.83
  5. Step 5: Solve for x
    x = 290,678,389.83/19,664.30
  6. Step 6: Final answer
    x = 14,782.04

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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.