Home / 8,821.74-12,173.11-5,284.86

Finding the Fourth Proportional to 8,821.74, 12,173.11 and 5,284.86

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Solution

The fourth proportional to 8,821.74, 12,173.11 and 5,284.86 is: 7,292.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.74 : 12,173.11 = 5,284.86 : x
  2. Step 2: Convert to fraction form
    8,821.74/12,173.11 = 5,284.86/x
  3. Step 3: Cross multiply
    8,821.74x = 12,173.11 × 5,284.86
  4. Step 4: Simplify right side
    8,821.74x = 64,333,182.11
  5. Step 5: Solve for x
    x = 64,333,182.11/8,821.74
  6. Step 6: Final answer
    x = 7,292.57

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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.