Home / 14,255.46-21,370.23-9,858.78

Finding the Fourth Proportional to 14,255.46, 21,370.23 and 9,858.78

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Solution

The fourth proportional to 14,255.46, 21,370.23 and 9,858.78 is: 14,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.46 : 21,370.23 = 9,858.78 : x
  2. Step 2: Convert to fraction form
    14,255.46/21,370.23 = 9,858.78/x
  3. Step 3: Cross multiply
    14,255.46x = 21,370.23 × 9,858.78
  4. Step 4: Simplify right side
    14,255.46x = 210,684,396.12
  5. Step 5: Solve for x
    x = 210,684,396.12/14,255.46
  6. Step 6: Final answer
    x = 14,779.21

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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.