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Finding the Fourth Proportional to 9,000.99, 12,418.52 and 6,208.11

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Solution

The fourth proportional to 9,000.99, 12,418.52 and 6,208.11 is: 8,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.99 : 12,418.52 = 6,208.11 : x
  2. Step 2: Convert to fraction form
    9,000.99/12,418.52 = 6,208.11/x
  3. Step 3: Cross multiply
    9,000.99x = 12,418.52 × 6,208.11
  4. Step 4: Simplify right side
    9,000.99x = 77,095,507.16
  5. Step 5: Solve for x
    x = 77,095,507.16/9,000.99
  6. Step 6: Final answer
    x = 8,565.23

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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.