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Finding the Fourth Proportional to 8,903.88, 12,280.66 and 7,495.09

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Solution

The fourth proportional to 8,903.88, 12,280.66 and 7,495.09 is: 10,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.88 : 12,280.66 = 7,495.09 : x
  2. Step 2: Convert to fraction form
    8,903.88/12,280.66 = 7,495.09/x
  3. Step 3: Cross multiply
    8,903.88x = 12,280.66 × 7,495.09
  4. Step 4: Simplify right side
    8,903.88x = 92,044,651.96
  5. Step 5: Solve for x
    x = 92,044,651.96/8,903.88
  6. Step 6: Final answer
    x = 10,337.59

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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.