Home / 7,915.79-10,923.95-4,379.15

Finding the Fourth Proportional to 7,915.79, 10,923.95 and 4,379.15

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Solution

The fourth proportional to 7,915.79, 10,923.95 and 4,379.15 is: 6,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.79 : 10,923.95 = 4,379.15 : x
  2. Step 2: Convert to fraction form
    7,915.79/10,923.95 = 4,379.15/x
  3. Step 3: Cross multiply
    7,915.79x = 10,923.95 × 4,379.15
  4. Step 4: Simplify right side
    7,915.79x = 47,837,571.97
  5. Step 5: Solve for x
    x = 47,837,571.97/7,915.79
  6. Step 6: Final answer
    x = 6,043.31

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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.