Home / 8,325.13-11,489.70-5,339.86

Finding the Fourth Proportional to 8,325.13, 11,489.70 and 5,339.86

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Solution

The fourth proportional to 8,325.13, 11,489.70 and 5,339.86 is: 7,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.13 : 11,489.70 = 5,339.86 : x
  2. Step 2: Convert to fraction form
    8,325.13/11,489.70 = 5,339.86/x
  3. Step 3: Cross multiply
    8,325.13x = 11,489.70 × 5,339.86
  4. Step 4: Simplify right side
    8,325.13x = 61,353,389.44
  5. Step 5: Solve for x
    x = 61,353,389.44/8,325.13
  6. Step 6: Final answer
    x = 7,369.66

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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.