Home / 12,949.23-17,869.50-7,284.09

Finding the Fourth Proportional to 12,949.23, 17,869.50 and 7,284.09

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Solution

The fourth proportional to 12,949.23, 17,869.50 and 7,284.09 is: 10,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.23 : 17,869.50 = 7,284.09 : x
  2. Step 2: Convert to fraction form
    12,949.23/17,869.50 = 7,284.09/x
  3. Step 3: Cross multiply
    12,949.23x = 17,869.50 × 7,284.09
  4. Step 4: Simplify right side
    12,949.23x = 130,163,046.26
  5. Step 5: Solve for x
    x = 130,163,046.26/12,949.23
  6. Step 6: Final answer
    x = 10,051.80

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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.