Home / 13,367.13-18,447.27-7,702.72

Finding the Fourth Proportional to 13,367.13, 18,447.27 and 7,702.72

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Solution

The fourth proportional to 13,367.13, 18,447.27 and 7,702.72 is: 10,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.13 : 18,447.27 = 7,702.72 : x
  2. Step 2: Convert to fraction form
    13,367.13/18,447.27 = 7,702.72/x
  3. Step 3: Cross multiply
    13,367.13x = 18,447.27 × 7,702.72
  4. Step 4: Simplify right side
    13,367.13x = 142,094,154.12
  5. Step 5: Solve for x
    x = 142,094,154.12/13,367.13
  6. Step 6: Final answer
    x = 10,630.12

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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.