Home / 13,344.49-18,415.19-7,376.03

Finding the Fourth Proportional to 13,344.49, 18,415.19 and 7,376.03

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Solution

The fourth proportional to 13,344.49, 18,415.19 and 7,376.03 is: 10,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.49 : 18,415.19 = 7,376.03 : x
  2. Step 2: Convert to fraction form
    13,344.49/18,415.19 = 7,376.03/x
  3. Step 3: Cross multiply
    13,344.49x = 18,415.19 × 7,376.03
  4. Step 4: Simplify right side
    13,344.49x = 135,830,901.82
  5. Step 5: Solve for x
    x = 135,830,901.82/13,344.49
  6. Step 6: Final answer
    x = 10,178.80

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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.