Home / 19,516.95-26,926.18-12,811.69

Finding the Fourth Proportional to 19,516.95, 26,926.18 and 12,811.69

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Solution

The fourth proportional to 19,516.95, 26,926.18 and 12,811.69 is: 17,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.95 : 26,926.18 = 12,811.69 : x
  2. Step 2: Convert to fraction form
    19,516.95/26,926.18 = 12,811.69/x
  3. Step 3: Cross multiply
    19,516.95x = 26,926.18 × 12,811.69
  4. Step 4: Simplify right side
    19,516.95x = 344,969,871.04
  5. Step 5: Solve for x
    x = 344,969,871.04/19,516.95
  6. Step 6: Final answer
    x = 17,675.40

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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.