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Finding the Fourth Proportional to 8,964.90, 12,352.41 and 6,603.30

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Solution

The fourth proportional to 8,964.90, 12,352.41 and 6,603.30 is: 9,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.90 : 12,352.41 = 6,603.30 : x
  2. Step 2: Convert to fraction form
    8,964.90/12,352.41 = 6,603.30/x
  3. Step 3: Cross multiply
    8,964.90x = 12,352.41 × 6,603.30
  4. Step 4: Simplify right side
    8,964.90x = 81,566,668.95
  5. Step 5: Solve for x
    x = 81,566,668.95/8,964.90
  6. Step 6: Final answer
    x = 9,098.45

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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.