Home / 7,014.45-9,679.93-3,870.64

Finding the Fourth Proportional to 7,014.45, 9,679.93 and 3,870.64

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Solution

The fourth proportional to 7,014.45, 9,679.93 and 3,870.64 is: 5,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.45 : 9,679.93 = 3,870.64 : x
  2. Step 2: Convert to fraction form
    7,014.45/9,679.93 = 3,870.64/x
  3. Step 3: Cross multiply
    7,014.45x = 9,679.93 × 3,870.64
  4. Step 4: Simplify right side
    7,014.45x = 37,467,524.26
  5. Step 5: Solve for x
    x = 37,467,524.26/7,014.45
  6. Step 6: Final answer
    x = 5,341.48

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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.