Home / 8,270.40-11,412.33-4,685.07

Finding the Fourth Proportional to 8,270.40, 11,412.33 and 4,685.07

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Solution

The fourth proportional to 8,270.40, 11,412.33 and 4,685.07 is: 6,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.40 : 11,412.33 = 4,685.07 : x
  2. Step 2: Convert to fraction form
    8,270.40/11,412.33 = 4,685.07/x
  3. Step 3: Cross multiply
    8,270.40x = 11,412.33 × 4,685.07
  4. Step 4: Simplify right side
    8,270.40x = 53,467,590.14
  5. Step 5: Solve for x
    x = 53,467,590.14/8,270.40
  6. Step 6: Final answer
    x = 6,464.93

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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.