Home / 13,184.21-19,779.28-4,418.90

Finding the Fourth Proportional to 13,184.21, 19,779.28 and 4,418.90

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Solution

The fourth proportional to 13,184.21, 19,779.28 and 4,418.90 is: 6,629.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.21 : 19,779.28 = 4,418.90 : x
  2. Step 2: Convert to fraction form
    13,184.21/19,779.28 = 4,418.90/x
  3. Step 3: Cross multiply
    13,184.21x = 19,779.28 × 4,418.90
  4. Step 4: Simplify right side
    13,184.21x = 87,402,649.34
  5. Step 5: Solve for x
    x = 87,402,649.34/13,184.21
  6. Step 6: Final answer
    x = 6,629.34

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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.