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Finding the Fourth Proportional to 6,655.51, 9,984.17 and 5,271.42

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Solution

The fourth proportional to 6,655.51, 9,984.17 and 5,271.42 is: 7,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.51 : 9,984.17 = 5,271.42 : x
  2. Step 2: Convert to fraction form
    6,655.51/9,984.17 = 5,271.42/x
  3. Step 3: Cross multiply
    6,655.51x = 9,984.17 × 5,271.42
  4. Step 4: Simplify right side
    6,655.51x = 52,630,753.42
  5. Step 5: Solve for x
    x = 52,630,753.42/6,655.51
  6. Step 6: Final answer
    x = 7,907.85

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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.