Home / 14,143.08-21,211.12-4,782.89

Finding the Fourth Proportional to 14,143.08, 21,211.12 and 4,782.89

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Solution

The fourth proportional to 14,143.08, 21,211.12 and 4,782.89 is: 7,173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.08 : 21,211.12 = 4,782.89 : x
  2. Step 2: Convert to fraction form
    14,143.08/21,211.12 = 4,782.89/x
  3. Step 3: Cross multiply
    14,143.08x = 21,211.12 × 4,782.89
  4. Step 4: Simplify right side
    14,143.08x = 101,450,453.74
  5. Step 5: Solve for x
    x = 101,450,453.74/14,143.08
  6. Step 6: Final answer
    x = 7,173.15

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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.