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Finding the Fourth Proportional to 9,370.55, 12,905.02 and 9,166.43

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Solution

The fourth proportional to 9,370.55, 12,905.02 and 9,166.43 is: 12,623.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.55 : 12,905.02 = 9,166.43 : x
  2. Step 2: Convert to fraction form
    9,370.55/12,905.02 = 9,166.43/x
  3. Step 3: Cross multiply
    9,370.55x = 12,905.02 × 9,166.43
  4. Step 4: Simplify right side
    9,370.55x = 118,292,962.48
  5. Step 5: Solve for x
    x = 118,292,962.48/9,370.55
  6. Step 6: Final answer
    x = 12,623.91

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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.