Home / 12,106.45-16,707.36-7,069.87

Finding the Fourth Proportional to 12,106.45, 16,707.36 and 7,069.87

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Solution

The fourth proportional to 12,106.45, 16,707.36 and 7,069.87 is: 9,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.45 : 16,707.36 = 7,069.87 : x
  2. Step 2: Convert to fraction form
    12,106.45/16,707.36 = 7,069.87/x
  3. Step 3: Cross multiply
    12,106.45x = 16,707.36 × 7,069.87
  4. Step 4: Simplify right side
    12,106.45x = 118,118,863.24
  5. Step 5: Solve for x
    x = 118,118,863.24/12,106.45
  6. Step 6: Final answer
    x = 9,756.69

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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.