Home / 12,570.79-18,849.69-5,173.87

Finding the Fourth Proportional to 12,570.79, 18,849.69 and 5,173.87

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Solution

The fourth proportional to 12,570.79, 18,849.69 and 5,173.87 is: 7,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.79 : 18,849.69 = 5,173.87 : x
  2. Step 2: Convert to fraction form
    12,570.79/18,849.69 = 5,173.87/x
  3. Step 3: Cross multiply
    12,570.79x = 18,849.69 × 5,173.87
  4. Step 4: Simplify right side
    12,570.79x = 97,525,845.60
  5. Step 5: Solve for x
    x = 97,525,845.60/12,570.79
  6. Step 6: Final answer
    x = 7,758.13

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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.