Home / 7,923.90-11,886.64-2,729.76

Finding the Fourth Proportional to 7,923.90, 11,886.64 and 2,729.76

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Solution

The fourth proportional to 7,923.90, 11,886.64 and 2,729.76 is: 4,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.90 : 11,886.64 = 2,729.76 : x
  2. Step 2: Convert to fraction form
    7,923.90/11,886.64 = 2,729.76/x
  3. Step 3: Cross multiply
    7,923.90x = 11,886.64 × 2,729.76
  4. Step 4: Simplify right side
    7,923.90x = 32,447,674.41
  5. Step 5: Solve for x
    x = 32,447,674.41/7,923.90
  6. Step 6: Final answer
    x = 4,094.91

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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.