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Finding the Fourth Proportional to 9,930.76, 14,888.29 and 6,801.28

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Solution

The fourth proportional to 9,930.76, 14,888.29 and 6,801.28 is: 10,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.76 : 14,888.29 = 6,801.28 : x
  2. Step 2: Convert to fraction form
    9,930.76/14,888.29 = 6,801.28/x
  3. Step 3: Cross multiply
    9,930.76x = 14,888.29 × 6,801.28
  4. Step 4: Simplify right side
    9,930.76x = 101,259,429.01
  5. Step 5: Solve for x
    x = 101,259,429.01/9,930.76
  6. Step 6: Final answer
    x = 10,196.54

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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.