Home / 12,069.99-16,655.67-6,763.78

Finding the Fourth Proportional to 12,069.99, 16,655.67 and 6,763.78

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Solution

The fourth proportional to 12,069.99, 16,655.67 and 6,763.78 is: 9,333.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.99 : 16,655.67 = 6,763.78 : x
  2. Step 2: Convert to fraction form
    12,069.99/16,655.67 = 6,763.78/x
  3. Step 3: Cross multiply
    12,069.99x = 16,655.67 × 6,763.78
  4. Step 4: Simplify right side
    12,069.99x = 112,655,287.63
  5. Step 5: Solve for x
    x = 112,655,287.63/12,069.99
  6. Step 6: Final answer
    x = 9,333.50

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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.