Home / 12,938.96-19,403.66-4,616.76

Finding the Fourth Proportional to 12,938.96, 19,403.66 and 4,616.76

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Solution

The fourth proportional to 12,938.96, 19,403.66 and 4,616.76 is: 6,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938.96 : 19,403.66 = 4,616.76 : x
  2. Step 2: Convert to fraction form
    12,938.96/19,403.66 = 4,616.76/x
  3. Step 3: Cross multiply
    12,938.96x = 19,403.66 × 4,616.76
  4. Step 4: Simplify right side
    12,938.96x = 89,582,041.34
  5. Step 5: Solve for x
    x = 89,582,041.34/12,938.96
  6. Step 6: Final answer
    x = 6,923.43

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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.