Home / 13,654.38-18,846.27-8,683.50

Finding the Fourth Proportional to 13,654.38, 18,846.27 and 8,683.50

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Solution

The fourth proportional to 13,654.38, 18,846.27 and 8,683.50 is: 11,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.38 : 18,846.27 = 8,683.50 : x
  2. Step 2: Convert to fraction form
    13,654.38/18,846.27 = 8,683.50/x
  3. Step 3: Cross multiply
    13,654.38x = 18,846.27 × 8,683.50
  4. Step 4: Simplify right side
    13,654.38x = 163,651,585.55
  5. Step 5: Solve for x
    x = 163,651,585.55/13,654.38
  6. Step 6: Final answer
    x = 11,985.28

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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.