Home / 8,455.16-11,668.14-4,678.60

Finding the Fourth Proportional to 8,455.16, 11,668.14 and 4,678.60

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Solution

The fourth proportional to 8,455.16, 11,668.14 and 4,678.60 is: 6,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.16 : 11,668.14 = 4,678.60 : x
  2. Step 2: Convert to fraction form
    8,455.16/11,668.14 = 4,678.60/x
  3. Step 3: Cross multiply
    8,455.16x = 11,668.14 × 4,678.60
  4. Step 4: Simplify right side
    8,455.16x = 54,590,559.80
  5. Step 5: Solve for x
    x = 54,590,559.80/8,455.16
  6. Step 6: Final answer
    x = 6,456.48

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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.