Home / 13,739.61-18,960.66-7,451.99

Finding the Fourth Proportional to 13,739.61, 18,960.66 and 7,451.99

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Solution

The fourth proportional to 13,739.61, 18,960.66 and 7,451.99 is: 10,283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.61 : 18,960.66 = 7,451.99 : x
  2. Step 2: Convert to fraction form
    13,739.61/18,960.66 = 7,451.99/x
  3. Step 3: Cross multiply
    13,739.61x = 18,960.66 × 7,451.99
  4. Step 4: Simplify right side
    13,739.61x = 141,294,553.91
  5. Step 5: Solve for x
    x = 141,294,553.91/13,739.61
  6. Step 6: Final answer
    x = 10,283.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.