Home / 13,260.86-18,297.62-7,518.34

Finding the Fourth Proportional to 13,260.86, 18,297.62 and 7,518.34

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Solution

The fourth proportional to 13,260.86, 18,297.62 and 7,518.34 is: 10,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.86 : 18,297.62 = 7,518.34 : x
  2. Step 2: Convert to fraction form
    13,260.86/18,297.62 = 7,518.34/x
  3. Step 3: Cross multiply
    13,260.86x = 18,297.62 × 7,518.34
  4. Step 4: Simplify right side
    13,260.86x = 137,567,690.76
  5. Step 5: Solve for x
    x = 137,567,690.76/13,260.86
  6. Step 6: Final answer
    x = 10,373.97

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Half scale
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Double scale
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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.