Home / 18,873.06-26,045.40-10,917.78

Finding the Fourth Proportional to 18,873.06, 26,045.40 and 10,917.78

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Solution

The fourth proportional to 18,873.06, 26,045.40 and 10,917.78 is: 15,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.06 : 26,045.40 = 10,917.78 : x
  2. Step 2: Convert to fraction form
    18,873.06/26,045.40 = 10,917.78/x
  3. Step 3: Cross multiply
    18,873.06x = 26,045.40 × 10,917.78
  4. Step 4: Simplify right side
    18,873.06x = 284,357,947.21
  5. Step 5: Solve for x
    x = 284,357,947.21/18,873.06
  6. Step 6: Final answer
    x = 15,066.87

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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.