Home / 13,345.92-18,415.80-7,377.62

Finding the Fourth Proportional to 13,345.92, 18,415.80 and 7,377.62

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Solution

The fourth proportional to 13,345.92, 18,415.80 and 7,377.62 is: 10,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.92 : 18,415.80 = 7,377.62 : x
  2. Step 2: Convert to fraction form
    13,345.92/18,415.80 = 7,377.62/x
  3. Step 3: Cross multiply
    13,345.92x = 18,415.80 × 7,377.62
  4. Step 4: Simplify right side
    13,345.92x = 135,864,682.32
  5. Step 5: Solve for x
    x = 135,864,682.32/13,345.92
  6. Step 6: Final answer
    x = 10,180.24

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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.