Home / 14,178.60-21,254.18-7,941.64

Finding the Fourth Proportional to 14,178.60, 21,254.18 and 7,941.64

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Solution

The fourth proportional to 14,178.60, 21,254.18 and 7,941.64 is: 11,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.60 : 21,254.18 = 7,941.64 : x
  2. Step 2: Convert to fraction form
    14,178.60/21,254.18 = 7,941.64/x
  3. Step 3: Cross multiply
    14,178.60x = 21,254.18 × 7,941.64
  4. Step 4: Simplify right side
    14,178.60x = 168,793,046.06
  5. Step 5: Solve for x
    x = 168,793,046.06/14,178.60
  6. Step 6: Final answer
    x = 11,904.78

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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.