Home / 13,995.80-19,312.77-8,617.38

Finding the Fourth Proportional to 13,995.80, 19,312.77 and 8,617.38

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Solution

The fourth proportional to 13,995.80, 19,312.77 and 8,617.38 is: 11,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.80 : 19,312.77 = 8,617.38 : x
  2. Step 2: Convert to fraction form
    13,995.80/19,312.77 = 8,617.38/x
  3. Step 3: Cross multiply
    13,995.80x = 19,312.77 × 8,617.38
  4. Step 4: Simplify right side
    13,995.80x = 166,425,477.94
  5. Step 5: Solve for x
    x = 166,425,477.94/13,995.80
  6. Step 6: Final answer
    x = 11,891.11

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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.