Home / 8,985.55-13,478.30-2,745.58

Finding the Fourth Proportional to 8,985.55, 13,478.30 and 2,745.58

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Solution

The fourth proportional to 8,985.55, 13,478.30 and 2,745.58 is: 4,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.55 : 13,478.30 = 2,745.58 : x
  2. Step 2: Convert to fraction form
    8,985.55/13,478.30 = 2,745.58/x
  3. Step 3: Cross multiply
    8,985.55x = 13,478.30 × 2,745.58
  4. Step 4: Simplify right side
    8,985.55x = 37,005,683.52
  5. Step 5: Solve for x
    x = 37,005,683.52/8,985.55
  6. Step 6: Final answer
    x = 4,118.36

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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.