Home / 12,664.08-17,473.32-8,683.20

Finding the Fourth Proportional to 12,664.08, 17,473.32 and 8,683.20

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Solution

The fourth proportional to 12,664.08, 17,473.32 and 8,683.20 is: 11,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.08 : 17,473.32 = 8,683.20 : x
  2. Step 2: Convert to fraction form
    12,664.08/17,473.32 = 8,683.20/x
  3. Step 3: Cross multiply
    12,664.08x = 17,473.32 × 8,683.20
  4. Step 4: Simplify right side
    12,664.08x = 151,724,332.22
  5. Step 5: Solve for x
    x = 151,724,332.22/12,664.08
  6. Step 6: Final answer
    x = 11,980.68

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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.