Home / 12,075.88-16,666.68-7,299.76

Finding the Fourth Proportional to 12,075.88, 16,666.68 and 7,299.76

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Solution

The fourth proportional to 12,075.88, 16,666.68 and 7,299.76 is: 10,074.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.88 : 16,666.68 = 7,299.76 : x
  2. Step 2: Convert to fraction form
    12,075.88/16,666.68 = 7,299.76/x
  3. Step 3: Cross multiply
    12,075.88x = 16,666.68 × 7,299.76
  4. Step 4: Simplify right side
    12,075.88x = 121,662,764.00
  5. Step 5: Solve for x
    x = 121,662,764.00/12,075.88
  6. Step 6: Final answer
    x = 10,074.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.