Home / 12,646.16-18,982.60-7,104.24

Finding the Fourth Proportional to 12,646.16, 18,982.60 and 7,104.24

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Solution

The fourth proportional to 12,646.16, 18,982.60 and 7,104.24 is: 10,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.16 : 18,982.60 = 7,104.24 : x
  2. Step 2: Convert to fraction form
    12,646.16/18,982.60 = 7,104.24/x
  3. Step 3: Cross multiply
    12,646.16x = 18,982.60 × 7,104.24
  4. Step 4: Simplify right side
    12,646.16x = 134,856,946.22
  5. Step 5: Solve for x
    x = 134,856,946.22/12,646.16
  6. Step 6: Final answer
    x = 10,663.87

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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.