Home / 8,890.64-12,269.33-5,307.68

Finding the Fourth Proportional to 8,890.64, 12,269.33 and 5,307.68

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Solution

The fourth proportional to 8,890.64, 12,269.33 and 5,307.68 is: 7,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.64 : 12,269.33 = 5,307.68 : x
  2. Step 2: Convert to fraction form
    8,890.64/12,269.33 = 5,307.68/x
  3. Step 3: Cross multiply
    8,890.64x = 12,269.33 × 5,307.68
  4. Step 4: Simplify right side
    8,890.64x = 65,121,650.92
  5. Step 5: Solve for x
    x = 65,121,650.92/8,890.64
  6. Step 6: Final answer
    x = 7,324.74

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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.