Home / 13,270.50-18,333.41-9,907.47

Finding the Fourth Proportional to 13,270.50, 18,333.41 and 9,907.47

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Solution

The fourth proportional to 13,270.50, 18,333.41 and 9,907.47 is: 13,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.50 : 18,333.41 = 9,907.47 : x
  2. Step 2: Convert to fraction form
    13,270.50/18,333.41 = 9,907.47/x
  3. Step 3: Cross multiply
    13,270.50x = 18,333.41 × 9,907.47
  4. Step 4: Simplify right side
    13,270.50x = 181,637,660.04
  5. Step 5: Solve for x
    x = 181,637,660.04/13,270.50
  6. Step 6: Final answer
    x = 13,687.33

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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.