Home / 14,265.39-19,686.30-7,977.75

Finding the Fourth Proportional to 14,265.39, 19,686.30 and 7,977.75

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Solution

The fourth proportional to 14,265.39, 19,686.30 and 7,977.75 is: 11,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,265.39 : 19,686.30 = 7,977.75 : x
  2. Step 2: Convert to fraction form
    14,265.39/19,686.30 = 7,977.75/x
  3. Step 3: Cross multiply
    14,265.39x = 19,686.30 × 7,977.75
  4. Step 4: Simplify right side
    14,265.39x = 157,052,379.83
  5. Step 5: Solve for x
    x = 157,052,379.83/14,265.39
  6. Step 6: Final answer
    x = 11,009.33

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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.