Home / 13,337.49-18,405.73-7,369.20

Finding the Fourth Proportional to 13,337.49, 18,405.73 and 7,369.20

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Solution

The fourth proportional to 13,337.49, 18,405.73 and 7,369.20 is: 10,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.49 : 18,405.73 = 7,369.20 : x
  2. Step 2: Convert to fraction form
    13,337.49/18,405.73 = 7,369.20/x
  3. Step 3: Cross multiply
    13,337.49x = 18,405.73 × 7,369.20
  4. Step 4: Simplify right side
    13,337.49x = 135,635,566.49
  5. Step 5: Solve for x
    x = 135,635,566.49/13,337.49
  6. Step 6: Final answer
    x = 10,169.50

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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.