Home / 12,965.73-19,399.51-7,703.56

Finding the Fourth Proportional to 12,965.73, 19,399.51 and 7,703.56

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Solution

The fourth proportional to 12,965.73, 19,399.51 and 7,703.56 is: 11,526.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.73 : 19,399.51 = 7,703.56 : x
  2. Step 2: Convert to fraction form
    12,965.73/19,399.51 = 7,703.56/x
  3. Step 3: Cross multiply
    12,965.73x = 19,399.51 × 7,703.56
  4. Step 4: Simplify right side
    12,965.73x = 149,445,289.26
  5. Step 5: Solve for x
    x = 149,445,289.26/12,965.73
  6. Step 6: Final answer
    x = 11,526.18

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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.