Home / 9,975.02-13,770.52-7,731.86

Finding the Fourth Proportional to 9,975.02, 13,770.52 and 7,731.86

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Solution

The fourth proportional to 9,975.02, 13,770.52 and 7,731.86 is: 10,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.02 : 13,770.52 = 7,731.86 : x
  2. Step 2: Convert to fraction form
    9,975.02/13,770.52 = 7,731.86/x
  3. Step 3: Cross multiply
    9,975.02x = 13,770.52 × 7,731.86
  4. Step 4: Simplify right side
    9,975.02x = 106,471,732.77
  5. Step 5: Solve for x
    x = 106,471,732.77/9,975.02
  6. Step 6: Final answer
    x = 10,673.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.