Home / 18,911.01-26,077.85-12,535.38

Finding the Fourth Proportional to 18,911.01, 26,077.85 and 12,535.38

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Solution

The fourth proportional to 18,911.01, 26,077.85 and 12,535.38 is: 17,286.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.01 : 26,077.85 = 12,535.38 : x
  2. Step 2: Convert to fraction form
    18,911.01/26,077.85 = 12,535.38/x
  3. Step 3: Cross multiply
    18,911.01x = 26,077.85 × 12,535.38
  4. Step 4: Simplify right side
    18,911.01x = 326,895,696.66
  5. Step 5: Solve for x
    x = 326,895,696.66/18,911.01
  6. Step 6: Final answer
    x = 17,286.00

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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.