Home / 19,075.50-28,609.74-7,979.22

Finding the Fourth Proportional to 19,075.50, 28,609.74 and 7,979.22

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Solution

The fourth proportional to 19,075.50, 28,609.74 and 7,979.22 is: 11,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,075.50 : 28,609.74 = 7,979.22 : x
  2. Step 2: Convert to fraction form
    19,075.50/28,609.74 = 7,979.22/x
  3. Step 3: Cross multiply
    19,075.50x = 28,609.74 × 7,979.22
  4. Step 4: Simplify right side
    19,075.50x = 228,283,409.60
  5. Step 5: Solve for x
    x = 228,283,409.60/19,075.50
  6. Step 6: Final answer
    x = 11,967.36

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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.