Home / 15,557.78-23,309.33-12,769.35

Finding the Fourth Proportional to 15,557.78, 23,309.33 and 12,769.35

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Solution

The fourth proportional to 15,557.78, 23,309.33 and 12,769.35 is: 19,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.78 : 23,309.33 = 12,769.35 : x
  2. Step 2: Convert to fraction form
    15,557.78/23,309.33 = 12,769.35/x
  3. Step 3: Cross multiply
    15,557.78x = 23,309.33 × 12,769.35
  4. Step 4: Simplify right side
    15,557.78x = 297,644,929.19
  5. Step 5: Solve for x
    x = 297,644,929.19/15,557.78
  6. Step 6: Final answer
    x = 19,131.59

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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.