Home / 8,320.55-11,484.29-4,785.80

Finding the Fourth Proportional to 8,320.55, 11,484.29 and 4,785.80

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Solution

The fourth proportional to 8,320.55, 11,484.29 and 4,785.80 is: 6,605.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.55 : 11,484.29 = 4,785.80 : x
  2. Step 2: Convert to fraction form
    8,320.55/11,484.29 = 4,785.80/x
  3. Step 3: Cross multiply
    8,320.55x = 11,484.29 × 4,785.80
  4. Step 4: Simplify right side
    8,320.55x = 54,961,515.08
  5. Step 5: Solve for x
    x = 54,961,515.08/8,320.55
  6. Step 6: Final answer
    x = 6,605.51

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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.