Home / 12,440.99-18,670.80-5,871.79

Finding the Fourth Proportional to 12,440.99, 18,670.80 and 5,871.79

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Solution

The fourth proportional to 12,440.99, 18,670.80 and 5,871.79 is: 8,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.99 : 18,670.80 = 5,871.79 : x
  2. Step 2: Convert to fraction form
    12,440.99/18,670.80 = 5,871.79/x
  3. Step 3: Cross multiply
    12,440.99x = 18,670.80 × 5,871.79
  4. Step 4: Simplify right side
    12,440.99x = 109,631,016.73
  5. Step 5: Solve for x
    x = 109,631,016.73/12,440.99
  6. Step 6: Final answer
    x = 8,812.08

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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.