Home / 13,344.55-18,415.28-7,376.09

Finding the Fourth Proportional to 13,344.55, 18,415.28 and 7,376.09

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Solution

The fourth proportional to 13,344.55, 18,415.28 and 7,376.09 is: 10,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.55 : 18,415.28 = 7,376.09 : x
  2. Step 2: Convert to fraction form
    13,344.55/18,415.28 = 7,376.09/x
  3. Step 3: Cross multiply
    13,344.55x = 18,415.28 × 7,376.09
  4. Step 4: Simplify right side
    13,344.55x = 135,832,647.53
  5. Step 5: Solve for x
    x = 135,832,647.53/13,344.55
  6. Step 6: Final answer
    x = 10,178.89

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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.