Home / 14,072.28-19,419.74-7,784.60

Finding the Fourth Proportional to 14,072.28, 19,419.74 and 7,784.60

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Solution

The fourth proportional to 14,072.28, 19,419.74 and 7,784.60 is: 10,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.28 : 19,419.74 = 7,784.60 : x
  2. Step 2: Convert to fraction form
    14,072.28/19,419.74 = 7,784.60/x
  3. Step 3: Cross multiply
    14,072.28x = 19,419.74 × 7,784.60
  4. Step 4: Simplify right side
    14,072.28x = 151,174,908.00
  5. Step 5: Solve for x
    x = 151,174,908.00/14,072.28
  6. Step 6: Final answer
    x = 10,742.74

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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.