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Finding the Fourth Proportional to 6,525.52, 8,992.78 and 6,405.55

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Solution

The fourth proportional to 6,525.52, 8,992.78 and 6,405.55 is: 8,827.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,525.52 : 8,992.78 = 6,405.55 : x
  2. Step 2: Convert to fraction form
    6,525.52/8,992.78 = 6,405.55/x
  3. Step 3: Cross multiply
    6,525.52x = 8,992.78 × 6,405.55
  4. Step 4: Simplify right side
    6,525.52x = 57,603,701.93
  5. Step 5: Solve for x
    x = 57,603,701.93/6,525.52
  6. Step 6: Final answer
    x = 8,827.45

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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.