Home / 14,439.20-21,658.64-4,578.21

Finding the Fourth Proportional to 14,439.20, 21,658.64 and 4,578.21

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Solution

The fourth proportional to 14,439.20, 21,658.64 and 4,578.21 is: 6,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.20 : 21,658.64 = 4,578.21 : x
  2. Step 2: Convert to fraction form
    14,439.20/21,658.64 = 4,578.21/x
  3. Step 3: Cross multiply
    14,439.20x = 21,658.64 × 4,578.21
  4. Step 4: Simplify right side
    14,439.20x = 99,157,779.34
  5. Step 5: Solve for x
    x = 99,157,779.34/14,439.20
  6. Step 6: Final answer
    x = 6,867.27

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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.