Home / 12,431.06-18,646.64-5,035.66

Finding the Fourth Proportional to 12,431.06, 18,646.64 and 5,035.66

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Solution

The fourth proportional to 12,431.06, 18,646.64 and 5,035.66 is: 7,553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.06 : 18,646.64 = 5,035.66 : x
  2. Step 2: Convert to fraction form
    12,431.06/18,646.64 = 5,035.66/x
  3. Step 3: Cross multiply
    12,431.06x = 18,646.64 × 5,035.66
  4. Step 4: Simplify right side
    12,431.06x = 93,898,159.96
  5. Step 5: Solve for x
    x = 93,898,159.96/12,431.06
  6. Step 6: Final answer
    x = 7,553.51

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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.