Home / 19,453.72-26,818.12-13,855

Finding the Fourth Proportional to 19,453.72, 26,818.12 and 13,855

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Solution

The fourth proportional to 19,453.72, 26,818.12 and 13,855 is: 19,099.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,453.72 : 26,818.12 = 13,855 : x
  2. Step 2: Convert to fraction form
    19,453.72/26,818.12 = 13,855/x
  3. Step 3: Cross multiply
    19,453.72x = 26,818.12 × 13,855
  4. Step 4: Simplify right side
    19,453.72x = 371,565,052.60
  5. Step 5: Solve for x
    x = 371,565,052.60/19,453.72
  6. Step 6: Final answer
    x = 19,099.95

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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.