Home / 18,702.32-25,818.55-11,631.02

Finding the Fourth Proportional to 18,702.32, 25,818.55 and 11,631.02

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Solution

The fourth proportional to 18,702.32, 25,818.55 and 11,631.02 is: 16,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.32 : 25,818.55 = 11,631.02 : x
  2. Step 2: Convert to fraction form
    18,702.32/25,818.55 = 11,631.02/x
  3. Step 3: Cross multiply
    18,702.32x = 25,818.55 × 11,631.02
  4. Step 4: Simplify right side
    18,702.32x = 300,295,913.25
  5. Step 5: Solve for x
    x = 300,295,913.25/18,702.32
  6. Step 6: Final answer
    x = 16,056.62

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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.