Home / 19,518-26,927.49-12,807.33

Finding the Fourth Proportional to 19,518, 26,927.49 and 12,807.33

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Solution

The fourth proportional to 19,518, 26,927.49 and 12,807.33 is: 17,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518 : 26,927.49 = 12,807.33 : x
  2. Step 2: Convert to fraction form
    19,518/26,927.49 = 12,807.33/x
  3. Step 3: Cross multiply
    19,518x = 26,927.49 × 12,807.33
  4. Step 4: Simplify right side
    19,518x = 344,869,250.50
  5. Step 5: Solve for x
    x = 344,869,250.50/19,518
  6. Step 6: Final answer
    x = 17,669.29

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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.