Home / 13,398.13-20,094.45-5,075.28

Finding the Fourth Proportional to 13,398.13, 20,094.45 and 5,075.28

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Solution

The fourth proportional to 13,398.13, 20,094.45 and 5,075.28 is: 7,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.13 : 20,094.45 = 5,075.28 : x
  2. Step 2: Convert to fraction form
    13,398.13/20,094.45 = 5,075.28/x
  3. Step 3: Cross multiply
    13,398.13x = 20,094.45 × 5,075.28
  4. Step 4: Simplify right side
    13,398.13x = 101,984,960.20
  5. Step 5: Solve for x
    x = 101,984,960.20/13,398.13
  6. Step 6: Final answer
    x = 7,611.88

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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.