Home / 13,155.80-19,695.30-11,773.40

Finding the Fourth Proportional to 13,155.80, 19,695.30 and 11,773.40

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Solution

The fourth proportional to 13,155.80, 19,695.30 and 11,773.40 is: 17,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.80 : 19,695.30 = 11,773.40 : x
  2. Step 2: Convert to fraction form
    13,155.80/19,695.30 = 11,773.40/x
  3. Step 3: Cross multiply
    13,155.80x = 19,695.30 × 11,773.40
  4. Step 4: Simplify right side
    13,155.80x = 231,880,645.02
  5. Step 5: Solve for x
    x = 231,880,645.02/13,155.80
  6. Step 6: Final answer
    x = 17,625.74

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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.