Home / 13,986.12-19,301.34-7,698.66

Finding the Fourth Proportional to 13,986.12, 19,301.34 and 7,698.66

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Solution

The fourth proportional to 13,986.12, 19,301.34 and 7,698.66 is: 10,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.12 : 19,301.34 = 7,698.66 : x
  2. Step 2: Convert to fraction form
    13,986.12/19,301.34 = 7,698.66/x
  3. Step 3: Cross multiply
    13,986.12x = 19,301.34 × 7,698.66
  4. Step 4: Simplify right side
    13,986.12x = 148,594,454.20
  5. Step 5: Solve for x
    x = 148,594,454.20/13,986.12
  6. Step 6: Final answer
    x = 10,624.42

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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.