Home / 7,864.44-10,851.48-4,678.80

Finding the Fourth Proportional to 7,864.44, 10,851.48 and 4,678.80

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Solution

The fourth proportional to 7,864.44, 10,851.48 and 4,678.80 is: 6,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.44 : 10,851.48 = 4,678.80 : x
  2. Step 2: Convert to fraction form
    7,864.44/10,851.48 = 4,678.80/x
  3. Step 3: Cross multiply
    7,864.44x = 10,851.48 × 4,678.80
  4. Step 4: Simplify right side
    7,864.44x = 50,771,904.62
  5. Step 5: Solve for x
    x = 50,771,904.62/7,864.44
  6. Step 6: Final answer
    x = 6,455.88

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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.