Home / 9,240.41-12,751.75-4,991.47

Finding the Fourth Proportional to 9,240.41, 12,751.75 and 4,991.47

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Solution

The fourth proportional to 9,240.41, 12,751.75 and 4,991.47 is: 6,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.41 : 12,751.75 = 4,991.47 : x
  2. Step 2: Convert to fraction form
    9,240.41/12,751.75 = 4,991.47/x
  3. Step 3: Cross multiply
    9,240.41x = 12,751.75 × 4,991.47
  4. Step 4: Simplify right side
    9,240.41x = 63,649,977.57
  5. Step 5: Solve for x
    x = 63,649,977.57/9,240.41
  6. Step 6: Final answer
    x = 6,888.22

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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.