Home / 19,148.72-28,722.36-5,297.36

Finding the Fourth Proportional to 19,148.72, 28,722.36 and 5,297.36

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Solution

The fourth proportional to 19,148.72, 28,722.36 and 5,297.36 is: 7,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.72 : 28,722.36 = 5,297.36 : x
  2. Step 2: Convert to fraction form
    19,148.72/28,722.36 = 5,297.36/x
  3. Step 3: Cross multiply
    19,148.72x = 28,722.36 × 5,297.36
  4. Step 4: Simplify right side
    19,148.72x = 152,152,680.97
  5. Step 5: Solve for x
    x = 152,152,680.97/19,148.72
  6. Step 6: Final answer
    x = 7,945.84

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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.