Home / 19,486.66-26,896.40-11,931.62

Finding the Fourth Proportional to 19,486.66, 26,896.40 and 11,931.62

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Solution

The fourth proportional to 19,486.66, 26,896.40 and 11,931.62 is: 16,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.66 : 26,896.40 = 11,931.62 : x
  2. Step 2: Convert to fraction form
    19,486.66/26,896.40 = 11,931.62/x
  3. Step 3: Cross multiply
    19,486.66x = 26,896.40 × 11,931.62
  4. Step 4: Simplify right side
    19,486.66x = 320,917,624.17
  5. Step 5: Solve for x
    x = 320,917,624.17/19,486.66
  6. Step 6: Final answer
    x = 16,468.58

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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.