Home / 13,674.04-18,871.98-7,707

Finding the Fourth Proportional to 13,674.04, 18,871.98 and 7,707

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Solution

The fourth proportional to 13,674.04, 18,871.98 and 7,707 is: 10,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.04 : 18,871.98 = 7,707 : x
  2. Step 2: Convert to fraction form
    13,674.04/18,871.98 = 7,707/x
  3. Step 3: Cross multiply
    13,674.04x = 18,871.98 × 7,707
  4. Step 4: Simplify right side
    13,674.04x = 145,446,349.86
  5. Step 5: Solve for x
    x = 145,446,349.86/13,674.04
  6. Step 6: Final answer
    x = 10,636.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.