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Finding the Fourth Proportional to 8,397.38, 12,592.43 and 4,890.89

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Solution

The fourth proportional to 8,397.38, 12,592.43 and 4,890.89 is: 7,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.38 : 12,592.43 = 4,890.89 : x
  2. Step 2: Convert to fraction form
    8,397.38/12,592.43 = 4,890.89/x
  3. Step 3: Cross multiply
    8,397.38x = 12,592.43 × 4,890.89
  4. Step 4: Simplify right side
    8,397.38x = 61,588,165.51
  5. Step 5: Solve for x
    x = 61,588,165.51/8,397.38
  6. Step 6: Final answer
    x = 7,334.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.