Home / 7,379.29-11,064.68-4,378.47

Finding the Fourth Proportional to 7,379.29, 11,064.68 and 4,378.47

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Solution

The fourth proportional to 7,379.29, 11,064.68 and 4,378.47 is: 6,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.29 : 11,064.68 = 4,378.47 : x
  2. Step 2: Convert to fraction form
    7,379.29/11,064.68 = 4,378.47/x
  3. Step 3: Cross multiply
    7,379.29x = 11,064.68 × 4,378.47
  4. Step 4: Simplify right side
    7,379.29x = 48,446,409.34
  5. Step 5: Solve for x
    x = 48,446,409.34/7,379.29
  6. Step 6: Final answer
    x = 6,565.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.