Home / 13,198.60-19,727.69-9,310.60

Finding the Fourth Proportional to 13,198.60, 19,727.69 and 9,310.60

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Solution

The fourth proportional to 13,198.60, 19,727.69 and 9,310.60 is: 13,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.60 : 19,727.69 = 9,310.60 : x
  2. Step 2: Convert to fraction form
    13,198.60/19,727.69 = 9,310.60/x
  3. Step 3: Cross multiply
    13,198.60x = 19,727.69 × 9,310.60
  4. Step 4: Simplify right side
    13,198.60x = 183,676,630.51
  5. Step 5: Solve for x
    x = 183,676,630.51/13,198.60
  6. Step 6: Final answer
    x = 13,916.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.