Home / 8,813.93-13,216.64-5,117.09

Finding the Fourth Proportional to 8,813.93, 13,216.64 and 5,117.09

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Solution

The fourth proportional to 8,813.93, 13,216.64 and 5,117.09 is: 7,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.93 : 13,216.64 = 5,117.09 : x
  2. Step 2: Convert to fraction form
    8,813.93/13,216.64 = 5,117.09/x
  3. Step 3: Cross multiply
    8,813.93x = 13,216.64 × 5,117.09
  4. Step 4: Simplify right side
    8,813.93x = 67,630,644.71
  5. Step 5: Solve for x
    x = 67,630,644.71/8,813.93
  6. Step 6: Final answer
    x = 7,673.16

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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.