Home / 13,387.98-20,086.50-5,070.36

Finding the Fourth Proportional to 13,387.98, 20,086.50 and 5,070.36

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Solution

The fourth proportional to 13,387.98, 20,086.50 and 5,070.36 is: 7,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.98 : 20,086.50 = 5,070.36 : x
  2. Step 2: Convert to fraction form
    13,387.98/20,086.50 = 5,070.36/x
  3. Step 3: Cross multiply
    13,387.98x = 20,086.50 × 5,070.36
  4. Step 4: Simplify right side
    13,387.98x = 101,845,786.14
  5. Step 5: Solve for x
    x = 101,845,786.14/13,387.98
  6. Step 6: Final answer
    x = 7,607.26

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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.