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Finding the Fourth Proportional to 9,801, 13,503.78 and 9,541.80

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Solution

The fourth proportional to 9,801, 13,503.78 and 9,541.80 is: 13,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,801 : 13,503.78 = 9,541.80 : x
  2. Step 2: Convert to fraction form
    9,801/13,503.78 = 9,541.80/x
  3. Step 3: Cross multiply
    9,801x = 13,503.78 × 9,541.80
  4. Step 4: Simplify right side
    9,801x = 128,850,368.00
  5. Step 5: Solve for x
    x = 128,850,368.00/9,801
  6. Step 6: Final answer
    x = 13,146.66

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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.