Home / 15,665.82-23,457.15-12,254.61

Finding the Fourth Proportional to 15,665.82, 23,457.15 and 12,254.61

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Solution

The fourth proportional to 15,665.82, 23,457.15 and 12,254.61 is: 18,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.82 : 23,457.15 = 12,254.61 : x
  2. Step 2: Convert to fraction form
    15,665.82/23,457.15 = 12,254.61/x
  3. Step 3: Cross multiply
    15,665.82x = 23,457.15 × 12,254.61
  4. Step 4: Simplify right side
    15,665.82x = 287,458,224.96
  5. Step 5: Solve for x
    x = 287,458,224.96/15,665.82
  6. Step 6: Final answer
    x = 18,349.39

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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.