Home / 19,119.16-28,680.56-7,433.29

Finding the Fourth Proportional to 19,119.16, 28,680.56 and 7,433.29

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Solution

The fourth proportional to 19,119.16, 28,680.56 and 7,433.29 is: 11,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.16 : 28,680.56 = 7,433.29 : x
  2. Step 2: Convert to fraction form
    19,119.16/28,680.56 = 7,433.29/x
  3. Step 3: Cross multiply
    19,119.16x = 28,680.56 × 7,433.29
  4. Step 4: Simplify right side
    19,119.16x = 213,190,988.21
  5. Step 5: Solve for x
    x = 213,190,988.21/19,119.16
  6. Step 6: Final answer
    x = 11,150.65

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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.