Home / 18,075.10-27,077.34-12,451.78

Finding the Fourth Proportional to 18,075.10, 27,077.34 and 12,451.78

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Solution

The fourth proportional to 18,075.10, 27,077.34 and 12,451.78 is: 18,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.10 : 27,077.34 = 12,451.78 : x
  2. Step 2: Convert to fraction form
    18,075.10/27,077.34 = 12,451.78/x
  3. Step 3: Cross multiply
    18,075.10x = 27,077.34 × 12,451.78
  4. Step 4: Simplify right side
    18,075.10x = 337,160,988.27
  5. Step 5: Solve for x
    x = 337,160,988.27/18,075.10
  6. Step 6: Final answer
    x = 18,653.34

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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.