Home / 13,290.42-19,936.10-7,041.99

Finding the Fourth Proportional to 13,290.42, 19,936.10 and 7,041.99

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Solution

The fourth proportional to 13,290.42, 19,936.10 and 7,041.99 is: 10,563.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.42 : 19,936.10 = 7,041.99 : x
  2. Step 2: Convert to fraction form
    13,290.42/19,936.10 = 7,041.99/x
  3. Step 3: Cross multiply
    13,290.42x = 19,936.10 × 7,041.99
  4. Step 4: Simplify right side
    13,290.42x = 140,389,816.84
  5. Step 5: Solve for x
    x = 140,389,816.84/13,290.42
  6. Step 6: Final answer
    x = 10,563.23

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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.