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Finding the Fourth Proportional to 6,145.40, 8,893.55 and 6,145.40

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Solution

The fourth proportional to 6,145.40, 8,893.55 and 6,145.40 is: 8,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.40 : 8,893.55 = 6,145.40 : x
  2. Step 2: Convert to fraction form
    6,145.40/8,893.55 = 6,145.40/x
  3. Step 3: Cross multiply
    6,145.40x = 8,893.55 × 6,145.40
  4. Step 4: Simplify right side
    6,145.40x = 54,654,422.17
  5. Step 5: Solve for x
    x = 54,654,422.17/6,145.40
  6. Step 6: Final answer
    x = 8,893.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.