Home / 14,991.69-20,690.35-8,704.07

Finding the Fourth Proportional to 14,991.69, 20,690.35 and 8,704.07

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Solution

The fourth proportional to 14,991.69, 20,690.35 and 8,704.07 is: 12,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,991.69 : 20,690.35 = 8,704.07 : x
  2. Step 2: Convert to fraction form
    14,991.69/20,690.35 = 8,704.07/x
  3. Step 3: Cross multiply
    14,991.69x = 20,690.35 × 8,704.07
  4. Step 4: Simplify right side
    14,991.69x = 180,090,151.27
  5. Step 5: Solve for x
    x = 180,090,151.27/14,991.69
  6. Step 6: Final answer
    x = 12,012.67

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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.