Home / 9,021.09-12,448.60-4,987.68

Finding the Fourth Proportional to 9,021.09, 12,448.60 and 4,987.68

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Solution

The fourth proportional to 9,021.09, 12,448.60 and 4,987.68 is: 6,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.09 : 12,448.60 = 4,987.68 : x
  2. Step 2: Convert to fraction form
    9,021.09/12,448.60 = 4,987.68/x
  3. Step 3: Cross multiply
    9,021.09x = 12,448.60 × 4,987.68
  4. Step 4: Simplify right side
    9,021.09x = 62,089,699.31
  5. Step 5: Solve for x
    x = 62,089,699.31/9,021.09
  6. Step 6: Final answer
    x = 6,882.72

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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.