Home / 13,985.80-19,299.82-8,013.34

Finding the Fourth Proportional to 13,985.80, 19,299.82 and 8,013.34

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Solution

The fourth proportional to 13,985.80, 19,299.82 and 8,013.34 is: 11,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.80 : 19,299.82 = 8,013.34 : x
  2. Step 2: Convert to fraction form
    13,985.80/19,299.82 = 8,013.34/x
  3. Step 3: Cross multiply
    13,985.80x = 19,299.82 × 8,013.34
  4. Step 4: Simplify right side
    13,985.80x = 154,656,019.60
  5. Step 5: Solve for x
    x = 154,656,019.60/13,985.80
  6. Step 6: Final answer
    x = 11,058.07

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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.