Home / 19,040.54-28,567.64-8,509.68

Finding the Fourth Proportional to 19,040.54, 28,567.64 and 8,509.68

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Solution

The fourth proportional to 19,040.54, 28,567.64 and 8,509.68 is: 12,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040.54 : 28,567.64 = 8,509.68 : x
  2. Step 2: Convert to fraction form
    19,040.54/28,567.64 = 8,509.68/x
  3. Step 3: Cross multiply
    19,040.54x = 28,567.64 × 8,509.68
  4. Step 4: Simplify right side
    19,040.54x = 243,101,496.03
  5. Step 5: Solve for x
    x = 243,101,496.03/19,040.54
  6. Step 6: Final answer
    x = 12,767.58

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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.