Home / 7,215.48-10,807.43-4,287.33

Finding the Fourth Proportional to 7,215.48, 10,807.43 and 4,287.33

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Solution

The fourth proportional to 7,215.48, 10,807.43 and 4,287.33 is: 6,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.48 : 10,807.43 = 4,287.33 : x
  2. Step 2: Convert to fraction form
    7,215.48/10,807.43 = 4,287.33/x
  3. Step 3: Cross multiply
    7,215.48x = 10,807.43 × 4,287.33
  4. Step 4: Simplify right side
    7,215.48x = 46,334,997.43
  5. Step 5: Solve for x
    x = 46,334,997.43/7,215.48
  6. Step 6: Final answer
    x = 6,421.61

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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.