Home / 12,075.75-18,113.26-4,959.74

Finding the Fourth Proportional to 12,075.75, 18,113.26 and 4,959.74

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Solution

The fourth proportional to 12,075.75, 18,113.26 and 4,959.74 is: 7,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.75 : 18,113.26 = 4,959.74 : x
  2. Step 2: Convert to fraction form
    12,075.75/18,113.26 = 4,959.74/x
  3. Step 3: Cross multiply
    12,075.75x = 18,113.26 × 4,959.74
  4. Step 4: Simplify right side
    12,075.75x = 89,837,031.03
  5. Step 5: Solve for x
    x = 89,837,031.03/12,075.75
  6. Step 6: Final answer
    x = 7,439.46

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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.