Home / 19,300.90-28,952.70-7,612.60

Finding the Fourth Proportional to 19,300.90, 28,952.70 and 7,612.60

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Solution

The fourth proportional to 19,300.90, 28,952.70 and 7,612.60 is: 11,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300.90 : 28,952.70 = 7,612.60 : x
  2. Step 2: Convert to fraction form
    19,300.90/28,952.70 = 7,612.60/x
  3. Step 3: Cross multiply
    19,300.90x = 28,952.70 × 7,612.60
  4. Step 4: Simplify right side
    19,300.90x = 220,405,324.02
  5. Step 5: Solve for x
    x = 220,405,324.02/19,300.90
  6. Step 6: Final answer
    x = 11,419.43

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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.