Home / 7,918.60-10,927.74-4,381.72

Finding the Fourth Proportional to 7,918.60, 10,927.74 and 4,381.72

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Solution

The fourth proportional to 7,918.60, 10,927.74 and 4,381.72 is: 6,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.60 : 10,927.74 = 4,381.72 : x
  2. Step 2: Convert to fraction form
    7,918.60/10,927.74 = 4,381.72/x
  3. Step 3: Cross multiply
    7,918.60x = 10,927.74 × 4,381.72
  4. Step 4: Simplify right side
    7,918.60x = 47,882,296.91
  5. Step 5: Solve for x
    x = 47,882,296.91/7,918.60
  6. Step 6: Final answer
    x = 6,046.81

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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.