Home / 12,529.52-18,783.09-4,743.80

Finding the Fourth Proportional to 12,529.52, 18,783.09 and 4,743.80

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Solution

The fourth proportional to 12,529.52, 18,783.09 and 4,743.80 is: 7,111.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.52 : 18,783.09 = 4,743.80 : x
  2. Step 2: Convert to fraction form
    12,529.52/18,783.09 = 4,743.80/x
  3. Step 3: Cross multiply
    12,529.52x = 18,783.09 × 4,743.80
  4. Step 4: Simplify right side
    12,529.52x = 89,103,222.34
  5. Step 5: Solve for x
    x = 89,103,222.34/12,529.52
  6. Step 6: Final answer
    x = 7,111.46

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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.