Home / 13,344.48-18,415.92-7,376.16

Finding the Fourth Proportional to 13,344.48, 18,415.92 and 7,376.16

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Solution

The fourth proportional to 13,344.48, 18,415.92 and 7,376.16 is: 10,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.48 : 18,415.92 = 7,376.16 : x
  2. Step 2: Convert to fraction form
    13,344.48/18,415.92 = 7,376.16/x
  3. Step 3: Cross multiply
    13,344.48x = 18,415.92 × 7,376.16
  4. Step 4: Simplify right side
    13,344.48x = 135,838,772.47
  5. Step 5: Solve for x
    x = 135,838,772.47/13,344.48
  6. Step 6: Final answer
    x = 10,179.40

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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.