Home / 9,826.40-14,728.80-5,144.60

Finding the Fourth Proportional to 9,826.40, 14,728.80 and 5,144.60

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Solution

The fourth proportional to 9,826.40, 14,728.80 and 5,144.60 is: 7,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,826.40 : 14,728.80 = 5,144.60 : x
  2. Step 2: Convert to fraction form
    9,826.40/14,728.80 = 5,144.60/x
  3. Step 3: Cross multiply
    9,826.40x = 14,728.80 × 5,144.60
  4. Step 4: Simplify right side
    9,826.40x = 75,773,784.48
  5. Step 5: Solve for x
    x = 75,773,784.48/9,826.40
  6. Step 6: Final answer
    x = 7,711.25

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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.