Home / 12,478.23-17,196.19-8,935.29

Finding the Fourth Proportional to 12,478.23, 17,196.19 and 8,935.29

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Solution

The fourth proportional to 12,478.23, 17,196.19 and 8,935.29 is: 12,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478.23 : 17,196.19 = 8,935.29 : x
  2. Step 2: Convert to fraction form
    12,478.23/17,196.19 = 8,935.29/x
  3. Step 3: Cross multiply
    12,478.23x = 17,196.19 × 8,935.29
  4. Step 4: Simplify right side
    12,478.23x = 153,652,922.21
  5. Step 5: Solve for x
    x = 153,652,922.21/12,478.23
  6. Step 6: Final answer
    x = 12,313.68

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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.