Home / 13,795.20-19,036.71-7,826.85

Finding the Fourth Proportional to 13,795.20, 19,036.71 and 7,826.85

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Solution

The fourth proportional to 13,795.20, 19,036.71 and 7,826.85 is: 10,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.20 : 19,036.71 = 7,826.85 : x
  2. Step 2: Convert to fraction form
    13,795.20/19,036.71 = 7,826.85/x
  3. Step 3: Cross multiply
    13,795.20x = 19,036.71 × 7,826.85
  4. Step 4: Simplify right side
    13,795.20x = 148,997,473.66
  5. Step 5: Solve for x
    x = 148,997,473.66/13,795.20
  6. Step 6: Final answer
    x = 10,800.68

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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.