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Finding the Fourth Proportional to 6,518.42, 9,000.58 and 6,020.86

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Solution

The fourth proportional to 6,518.42, 9,000.58 and 6,020.86 is: 8,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.42 : 9,000.58 = 6,020.86 : x
  2. Step 2: Convert to fraction form
    6,518.42/9,000.58 = 6,020.86/x
  3. Step 3: Cross multiply
    6,518.42x = 9,000.58 × 6,020.86
  4. Step 4: Simplify right side
    6,518.42x = 54,191,232.10
  5. Step 5: Solve for x
    x = 54,191,232.10/6,518.42
  6. Step 6: Final answer
    x = 8,313.55

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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.