Home / 12,564.79-18,841.55-4,242.65

Finding the Fourth Proportional to 12,564.79, 18,841.55 and 4,242.65

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Solution

The fourth proportional to 12,564.79, 18,841.55 and 4,242.65 is: 6,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,564.79 : 18,841.55 = 4,242.65 : x
  2. Step 2: Convert to fraction form
    12,564.79/18,841.55 = 4,242.65/x
  3. Step 3: Cross multiply
    12,564.79x = 18,841.55 × 4,242.65
  4. Step 4: Simplify right side
    12,564.79x = 79,937,986.69
  5. Step 5: Solve for x
    x = 79,937,986.69/12,564.79
  6. Step 6: Final answer
    x = 6,362.06

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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.