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Finding the Fourth Proportional to 9,851.20, 14,774.20 and 4,917.20

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Solution

The fourth proportional to 9,851.20, 14,774.20 and 4,917.20 is: 7,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,851.20 : 14,774.20 = 4,917.20 : x
  2. Step 2: Convert to fraction form
    9,851.20/14,774.20 = 4,917.20/x
  3. Step 3: Cross multiply
    9,851.20x = 14,774.20 × 4,917.20
  4. Step 4: Simplify right side
    9,851.20x = 72,647,696.24
  5. Step 5: Solve for x
    x = 72,647,696.24/9,851.20
  6. Step 6: Final answer
    x = 7,374.50

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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.