Home / 14,107.87-21,158.76-5,779.72

Finding the Fourth Proportional to 14,107.87, 21,158.76 and 5,779.72

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Solution

The fourth proportional to 14,107.87, 21,158.76 and 5,779.72 is: 8,668.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.87 : 21,158.76 = 5,779.72 : x
  2. Step 2: Convert to fraction form
    14,107.87/21,158.76 = 5,779.72/x
  3. Step 3: Cross multiply
    14,107.87x = 21,158.76 × 5,779.72
  4. Step 4: Simplify right side
    14,107.87x = 122,291,602.55
  5. Step 5: Solve for x
    x = 122,291,602.55/14,107.87
  6. Step 6: Final answer
    x = 8,668.33

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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.