Home / 9,971.80-14,925.30-7,768.60

Finding the Fourth Proportional to 9,971.80, 14,925.30 and 7,768.60

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Solution

The fourth proportional to 9,971.80, 14,925.30 and 7,768.60 is: 11,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,971.80 : 14,925.30 = 7,768.60 : x
  2. Step 2: Convert to fraction form
    9,971.80/14,925.30 = 7,768.60/x
  3. Step 3: Cross multiply
    9,971.80x = 14,925.30 × 7,768.60
  4. Step 4: Simplify right side
    9,971.80x = 115,948,685.58
  5. Step 5: Solve for x
    x = 115,948,685.58/9,971.80
  6. Step 6: Final answer
    x = 11,627.66

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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.