Home / 13,239.94-18,269.76-7,934.62

Finding the Fourth Proportional to 13,239.94, 18,269.76 and 7,934.62

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Solution

The fourth proportional to 13,239.94, 18,269.76 and 7,934.62 is: 10,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.94 : 18,269.76 = 7,934.62 : x
  2. Step 2: Convert to fraction form
    13,239.94/18,269.76 = 7,934.62/x
  3. Step 3: Cross multiply
    13,239.94x = 18,269.76 × 7,934.62
  4. Step 4: Simplify right side
    13,239.94x = 144,963,603.09
  5. Step 5: Solve for x
    x = 144,963,603.09/13,239.94
  6. Step 6: Final answer
    x = 10,948.96

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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.