Home / 7,915.18-10,922.59-4,330.05

Finding the Fourth Proportional to 7,915.18, 10,922.59 and 4,330.05

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Solution

The fourth proportional to 7,915.18, 10,922.59 and 4,330.05 is: 5,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.18 : 10,922.59 = 4,330.05 : x
  2. Step 2: Convert to fraction form
    7,915.18/10,922.59 = 4,330.05/x
  3. Step 3: Cross multiply
    7,915.18x = 10,922.59 × 4,330.05
  4. Step 4: Simplify right side
    7,915.18x = 47,295,360.83
  5. Step 5: Solve for x
    x = 47,295,360.83/7,915.18
  6. Step 6: Final answer
    x = 5,975.27

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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.