Home / 12,376.63-18,557.43-4,871.22

Finding the Fourth Proportional to 12,376.63, 18,557.43 and 4,871.22

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Solution

The fourth proportional to 12,376.63, 18,557.43 and 4,871.22 is: 7,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.63 : 18,557.43 = 4,871.22 : x
  2. Step 2: Convert to fraction form
    12,376.63/18,557.43 = 4,871.22/x
  3. Step 3: Cross multiply
    12,376.63x = 18,557.43 × 4,871.22
  4. Step 4: Simplify right side
    12,376.63x = 90,397,324.16
  5. Step 5: Solve for x
    x = 90,397,324.16/12,376.63
  6. Step 6: Final answer
    x = 7,303.87

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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.