Home / 12,012.71-16,579.18-6,707.81

Finding the Fourth Proportional to 12,012.71, 16,579.18 and 6,707.81

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Solution

The fourth proportional to 12,012.71, 16,579.18 and 6,707.81 is: 9,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.71 : 16,579.18 = 6,707.81 : x
  2. Step 2: Convert to fraction form
    12,012.71/16,579.18 = 6,707.81/x
  3. Step 3: Cross multiply
    12,012.71x = 16,579.18 × 6,707.81
  4. Step 4: Simplify right side
    12,012.71x = 111,210,039.23
  5. Step 5: Solve for x
    x = 111,210,039.23/12,012.71
  6. Step 6: Final answer
    x = 9,257.70

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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.