Home / 7,915.80-11,873.70-5,443.14

Finding the Fourth Proportional to 7,915.80, 11,873.70 and 5,443.14

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Solution

The fourth proportional to 7,915.80, 11,873.70 and 5,443.14 is: 8,164.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.80 : 11,873.70 = 5,443.14 : x
  2. Step 2: Convert to fraction form
    7,915.80/11,873.70 = 5,443.14/x
  3. Step 3: Cross multiply
    7,915.80x = 11,873.70 × 5,443.14
  4. Step 4: Simplify right side
    7,915.80x = 64,630,211.42
  5. Step 5: Solve for x
    x = 64,630,211.42/7,915.80
  6. Step 6: Final answer
    x = 8,164.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.