Home / 14,134.60-21,193.80-4,272.40

Finding the Fourth Proportional to 14,134.60, 21,193.80 and 4,272.40

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Solution

The fourth proportional to 14,134.60, 21,193.80 and 4,272.40 is: 6,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.60 : 21,193.80 = 4,272.40 : x
  2. Step 2: Convert to fraction form
    14,134.60/21,193.80 = 4,272.40/x
  3. Step 3: Cross multiply
    14,134.60x = 21,193.80 × 4,272.40
  4. Step 4: Simplify right side
    14,134.60x = 90,548,391.12
  5. Step 5: Solve for x
    x = 90,548,391.12/14,134.60
  6. Step 6: Final answer
    x = 6,406.15

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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.