Home / 18,886.78-26,064.44-10,389.56

Finding the Fourth Proportional to 18,886.78, 26,064.44 and 10,389.56

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Solution

The fourth proportional to 18,886.78, 26,064.44 and 10,389.56 is: 14,337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.78 : 26,064.44 = 10,389.56 : x
  2. Step 2: Convert to fraction form
    18,886.78/26,064.44 = 10,389.56/x
  3. Step 3: Cross multiply
    18,886.78x = 26,064.44 × 10,389.56
  4. Step 4: Simplify right side
    18,886.78x = 270,797,880.98
  5. Step 5: Solve for x
    x = 270,797,880.98/18,886.78
  6. Step 6: Final answer
    x = 14,337.96

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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.