Home / 7,971.93-11,928.74-6,674.31

Finding the Fourth Proportional to 7,971.93, 11,928.74 and 6,674.31

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Solution

The fourth proportional to 7,971.93, 11,928.74 and 6,674.31 is: 9,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.93 : 11,928.74 = 6,674.31 : x
  2. Step 2: Convert to fraction form
    7,971.93/11,928.74 = 6,674.31/x
  3. Step 3: Cross multiply
    7,971.93x = 11,928.74 × 6,674.31
  4. Step 4: Simplify right side
    7,971.93x = 79,616,075.30
  5. Step 5: Solve for x
    x = 79,616,075.30/7,971.93
  6. Step 6: Final answer
    x = 9,987.05

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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.