Home / 14,072.09-19,418.60-7,784.46

Finding the Fourth Proportional to 14,072.09, 19,418.60 and 7,784.46

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Solution

The fourth proportional to 14,072.09, 19,418.60 and 7,784.46 is: 10,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.09 : 19,418.60 = 7,784.46 : x
  2. Step 2: Convert to fraction form
    14,072.09/19,418.60 = 7,784.46/x
  3. Step 3: Cross multiply
    14,072.09x = 19,418.60 × 7,784.46
  4. Step 4: Simplify right side
    14,072.09x = 151,163,334.42
  5. Step 5: Solve for x
    x = 151,163,334.42/14,072.09
  6. Step 6: Final answer
    x = 10,742.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.