Home / 18,702.64-28,056.88-5,556.32

Finding the Fourth Proportional to 18,702.64, 28,056.88 and 5,556.32

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Solution

The fourth proportional to 18,702.64, 28,056.88 and 5,556.32 is: 8,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.64 : 28,056.88 = 5,556.32 : x
  2. Step 2: Convert to fraction form
    18,702.64/28,056.88 = 5,556.32/x
  3. Step 3: Cross multiply
    18,702.64x = 28,056.88 × 5,556.32
  4. Step 4: Simplify right side
    18,702.64x = 155,893,003.48
  5. Step 5: Solve for x
    x = 155,893,003.48/18,702.64
  6. Step 6: Final answer
    x = 8,335.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.