Home / 8,458.23-11,678.10-5,272.80

Finding the Fourth Proportional to 8,458.23, 11,678.10 and 5,272.80

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Solution

The fourth proportional to 8,458.23, 11,678.10 and 5,272.80 is: 7,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.23 : 11,678.10 = 5,272.80 : x
  2. Step 2: Convert to fraction form
    8,458.23/11,678.10 = 5,272.80/x
  3. Step 3: Cross multiply
    8,458.23x = 11,678.10 × 5,272.80
  4. Step 4: Simplify right side
    8,458.23x = 61,576,285.68
  5. Step 5: Solve for x
    x = 61,576,285.68/8,458.23
  6. Step 6: Final answer
    x = 7,280.04

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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.