Home / 12,295.76-18,429.21-5,708.07

Finding the Fourth Proportional to 12,295.76, 18,429.21 and 5,708.07

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Solution

The fourth proportional to 12,295.76, 18,429.21 and 5,708.07 is: 8,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.76 : 18,429.21 = 5,708.07 : x
  2. Step 2: Convert to fraction form
    12,295.76/18,429.21 = 5,708.07/x
  3. Step 3: Cross multiply
    12,295.76x = 18,429.21 × 5,708.07
  4. Step 4: Simplify right side
    12,295.76x = 105,195,220.72
  5. Step 5: Solve for x
    x = 105,195,220.72/12,295.76
  6. Step 6: Final answer
    x = 8,555.41

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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.