Home / 7,915.60-10,923.70-4,379.06

Finding the Fourth Proportional to 7,915.60, 10,923.70 and 4,379.06

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Solution

The fourth proportional to 7,915.60, 10,923.70 and 4,379.06 is: 6,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.60 : 10,923.70 = 4,379.06 : x
  2. Step 2: Convert to fraction form
    7,915.60/10,923.70 = 4,379.06/x
  3. Step 3: Cross multiply
    7,915.60x = 10,923.70 × 4,379.06
  4. Step 4: Simplify right side
    7,915.60x = 47,835,537.72
  5. Step 5: Solve for x
    x = 47,835,537.72/7,915.60
  6. Step 6: Final answer
    x = 6,043.20

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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.