Home / 19,318.89-26,660.33-12,600.66

Finding the Fourth Proportional to 19,318.89, 26,660.33 and 12,600.66

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Solution

The fourth proportional to 19,318.89, 26,660.33 and 12,600.66 is: 17,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.89 : 26,660.33 = 12,600.66 : x
  2. Step 2: Convert to fraction form
    19,318.89/26,660.33 = 12,600.66/x
  3. Step 3: Cross multiply
    19,318.89x = 26,660.33 × 12,600.66
  4. Step 4: Simplify right side
    19,318.89x = 335,937,648.54
  5. Step 5: Solve for x
    x = 335,937,648.54/19,318.89
  6. Step 6: Final answer
    x = 17,389.08

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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.