Home / 19,170.79-28,762.06-9,817.38

Finding the Fourth Proportional to 19,170.79, 28,762.06 and 9,817.38

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Solution

The fourth proportional to 19,170.79, 28,762.06 and 9,817.38 is: 14,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.79 : 28,762.06 = 9,817.38 : x
  2. Step 2: Convert to fraction form
    19,170.79/28,762.06 = 9,817.38/x
  3. Step 3: Cross multiply
    19,170.79x = 28,762.06 × 9,817.38
  4. Step 4: Simplify right side
    19,170.79x = 282,368,072.60
  5. Step 5: Solve for x
    x = 282,368,072.60/19,170.79
  6. Step 6: Final answer
    x = 14,729.08

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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.