Home / 7,521.32-10,379.20-4,118.19

Finding the Fourth Proportional to 7,521.32, 10,379.20 and 4,118.19

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Solution

The fourth proportional to 7,521.32, 10,379.20 and 4,118.19 is: 5,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.32 : 10,379.20 = 4,118.19 : x
  2. Step 2: Convert to fraction form
    7,521.32/10,379.20 = 4,118.19/x
  3. Step 3: Cross multiply
    7,521.32x = 10,379.20 × 4,118.19
  4. Step 4: Simplify right side
    7,521.32x = 42,743,497.06
  5. Step 5: Solve for x
    x = 42,743,497.06/7,521.32
  6. Step 6: Final answer
    x = 5,682.98

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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.