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Finding the Fourth Proportional to 8,743.58, 12,069.51 and 6,404.30

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Solution

The fourth proportional to 8,743.58, 12,069.51 and 6,404.30 is: 8,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.58 : 12,069.51 = 6,404.30 : x
  2. Step 2: Convert to fraction form
    8,743.58/12,069.51 = 6,404.30/x
  3. Step 3: Cross multiply
    8,743.58x = 12,069.51 × 6,404.30
  4. Step 4: Simplify right side
    8,743.58x = 77,296,762.89
  5. Step 5: Solve for x
    x = 77,296,762.89/8,743.58
  6. Step 6: Final answer
    x = 8,840.40

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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.