Home / 13,684.92-18,885.18-7,397.30

Finding the Fourth Proportional to 13,684.92, 18,885.18 and 7,397.30

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Solution

The fourth proportional to 13,684.92, 18,885.18 and 7,397.30 is: 10,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.92 : 18,885.18 = 7,397.30 : x
  2. Step 2: Convert to fraction form
    13,684.92/18,885.18 = 7,397.30/x
  3. Step 3: Cross multiply
    13,684.92x = 18,885.18 × 7,397.30
  4. Step 4: Simplify right side
    13,684.92x = 139,699,247.59
  5. Step 5: Solve for x
    x = 139,699,247.59/13,684.92
  6. Step 6: Final answer
    x = 10,208.26

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1.5x scale

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.