Home / 19,966.68-27,562.87-12,896.55

Finding the Fourth Proportional to 19,966.68, 27,562.87 and 12,896.55

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Solution

The fourth proportional to 19,966.68, 27,562.87 and 12,896.55 is: 17,802.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.68 : 27,562.87 = 12,896.55 : x
  2. Step 2: Convert to fraction form
    19,966.68/27,562.87 = 12,896.55/x
  3. Step 3: Cross multiply
    19,966.68x = 27,562.87 × 12,896.55
  4. Step 4: Simplify right side
    19,966.68x = 355,465,931.10
  5. Step 5: Solve for x
    x = 355,465,931.10/19,966.68
  6. Step 6: Final answer
    x = 17,802.96

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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.