Home / 7,918.20-10,927.38-4,381.74

Finding the Fourth Proportional to 7,918.20, 10,927.38 and 4,381.74

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Solution

The fourth proportional to 7,918.20, 10,927.38 and 4,381.74 is: 6,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.20 : 10,927.38 = 4,381.74 : x
  2. Step 2: Convert to fraction form
    7,918.20/10,927.38 = 4,381.74/x
  3. Step 3: Cross multiply
    7,918.20x = 10,927.38 × 4,381.74
  4. Step 4: Simplify right side
    7,918.20x = 47,880,938.04
  5. Step 5: Solve for x
    x = 47,880,938.04/7,918.20
  6. Step 6: Final answer
    x = 6,046.95

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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.