Home / 18,742.01-28,104.75-7,047

Finding the Fourth Proportional to 18,742.01, 28,104.75 and 7,047

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Solution

The fourth proportional to 18,742.01, 28,104.75 and 7,047 is: 10,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.01 : 28,104.75 = 7,047 : x
  2. Step 2: Convert to fraction form
    18,742.01/28,104.75 = 7,047/x
  3. Step 3: Cross multiply
    18,742.01x = 28,104.75 × 7,047
  4. Step 4: Simplify right side
    18,742.01x = 198,054,173.25
  5. Step 5: Solve for x
    x = 198,054,173.25/18,742.01
  6. Step 6: Final answer
    x = 10,567.40

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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.