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Finding the Fourth Proportional to 9,930.17, 14,888.05 and 4,662.47

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Solution

The fourth proportional to 9,930.17, 14,888.05 and 4,662.47 is: 6,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.17 : 14,888.05 = 4,662.47 : x
  2. Step 2: Convert to fraction form
    9,930.17/14,888.05 = 4,662.47/x
  3. Step 3: Cross multiply
    9,930.17x = 14,888.05 × 4,662.47
  4. Step 4: Simplify right side
    9,930.17x = 69,415,112.05
  5. Step 5: Solve for x
    x = 69,415,112.05/9,930.17
  6. Step 6: Final answer
    x = 6,990.32

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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.