Home / 7,325.06-10,987.47-1,778.45

Finding the Fourth Proportional to 7,325.06, 10,987.47 and 1,778.45

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Solution

The fourth proportional to 7,325.06, 10,987.47 and 1,778.45 is: 2,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,325.06 : 10,987.47 = 1,778.45 : x
  2. Step 2: Convert to fraction form
    7,325.06/10,987.47 = 1,778.45/x
  3. Step 3: Cross multiply
    7,325.06x = 10,987.47 × 1,778.45
  4. Step 4: Simplify right side
    7,325.06x = 19,540,611.08
  5. Step 5: Solve for x
    x = 19,540,611.08/7,325.06
  6. Step 6: Final answer
    x = 2,667.64

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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.