Home / 18,970.72-28,446.48-11,075.92

Finding the Fourth Proportional to 18,970.72, 28,446.48 and 11,075.92

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Solution

The fourth proportional to 18,970.72, 28,446.48 and 11,075.92 is: 16,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.72 : 28,446.48 = 11,075.92 : x
  2. Step 2: Convert to fraction form
    18,970.72/28,446.48 = 11,075.92/x
  3. Step 3: Cross multiply
    18,970.72x = 28,446.48 × 11,075.92
  4. Step 4: Simplify right side
    18,970.72x = 315,070,936.76
  5. Step 5: Solve for x
    x = 315,070,936.76/18,970.72
  6. Step 6: Final answer
    x = 16,608.28

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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.