Home / 13,702.32-18,909.45-7,734.12

Finding the Fourth Proportional to 13,702.32, 18,909.45 and 7,734.12

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Solution

The fourth proportional to 13,702.32, 18,909.45 and 7,734.12 is: 10,673.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.32 : 18,909.45 = 7,734.12 : x
  2. Step 2: Convert to fraction form
    13,702.32/18,909.45 = 7,734.12/x
  3. Step 3: Cross multiply
    13,702.32x = 18,909.45 × 7,734.12
  4. Step 4: Simplify right side
    13,702.32x = 146,247,955.43
  5. Step 5: Solve for x
    x = 146,247,955.43/13,702.32
  6. Step 6: Final answer
    x = 10,673.23

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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.