Home / 12,688.56-19,034.12-4,367.48

Finding the Fourth Proportional to 12,688.56, 19,034.12 and 4,367.48

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Solution

The fourth proportional to 12,688.56, 19,034.12 and 4,367.48 is: 6,551.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.56 : 19,034.12 = 4,367.48 : x
  2. Step 2: Convert to fraction form
    12,688.56/19,034.12 = 4,367.48/x
  3. Step 3: Cross multiply
    12,688.56x = 19,034.12 × 4,367.48
  4. Step 4: Simplify right side
    12,688.56x = 83,131,116.58
  5. Step 5: Solve for x
    x = 83,131,116.58/12,688.56
  6. Step 6: Final answer
    x = 6,551.66

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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.