Home / 13,269.49-19,878.93-6,839.71

Finding the Fourth Proportional to 13,269.49, 19,878.93 and 6,839.71

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Solution

The fourth proportional to 13,269.49, 19,878.93 and 6,839.71 is: 10,246.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.49 : 19,878.93 = 6,839.71 : x
  2. Step 2: Convert to fraction form
    13,269.49/19,878.93 = 6,839.71/x
  3. Step 3: Cross multiply
    13,269.49x = 19,878.93 × 6,839.71
  4. Step 4: Simplify right side
    13,269.49x = 135,966,116.31
  5. Step 5: Solve for x
    x = 135,966,116.31/13,269.49
  6. Step 6: Final answer
    x = 10,246.52

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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.