Home / 19,321.79-26,666.35-11,772.59

Finding the Fourth Proportional to 19,321.79, 26,666.35 and 11,772.59

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Solution

The fourth proportional to 19,321.79, 26,666.35 and 11,772.59 is: 16,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.79 : 26,666.35 = 11,772.59 : x
  2. Step 2: Convert to fraction form
    19,321.79/26,666.35 = 11,772.59/x
  3. Step 3: Cross multiply
    19,321.79x = 26,666.35 × 11,772.59
  4. Step 4: Simplify right side
    19,321.79x = 313,931,842.58
  5. Step 5: Solve for x
    x = 313,931,842.58/19,321.79
  6. Step 6: Final answer
    x = 16,247.56

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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.