Home / 13,187.03-19,780.48-5,395.84

Finding the Fourth Proportional to 13,187.03, 19,780.48 and 5,395.84

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Solution

The fourth proportional to 13,187.03, 19,780.48 and 5,395.84 is: 8,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.03 : 19,780.48 = 5,395.84 : x
  2. Step 2: Convert to fraction form
    13,187.03/19,780.48 = 5,395.84/x
  3. Step 3: Cross multiply
    13,187.03x = 19,780.48 × 5,395.84
  4. Step 4: Simplify right side
    13,187.03x = 106,732,336.67
  5. Step 5: Solve for x
    x = 106,732,336.67/13,187.03
  6. Step 6: Final answer
    x = 8,093.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.