Home / 13,319.04-18,381.48-8,013

Finding the Fourth Proportional to 13,319.04, 18,381.48 and 8,013

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Solution

The fourth proportional to 13,319.04, 18,381.48 and 8,013 is: 11,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.04 : 18,381.48 = 8,013 : x
  2. Step 2: Convert to fraction form
    13,319.04/18,381.48 = 8,013/x
  3. Step 3: Cross multiply
    13,319.04x = 18,381.48 × 8,013
  4. Step 4: Simplify right side
    13,319.04x = 147,290,799.24
  5. Step 5: Solve for x
    x = 147,290,799.24/13,319.04
  6. Step 6: Final answer
    x = 11,058.66

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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.