Home / 13,520.80-18,651.90-9,044.74

Finding the Fourth Proportional to 13,520.80, 18,651.90 and 9,044.74

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Solution

The fourth proportional to 13,520.80, 18,651.90 and 9,044.74 is: 12,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.80 : 18,651.90 = 9,044.74 : x
  2. Step 2: Convert to fraction form
    13,520.80/18,651.90 = 9,044.74/x
  3. Step 3: Cross multiply
    13,520.80x = 18,651.90 × 9,044.74
  4. Step 4: Simplify right side
    13,520.80x = 168,701,586.01
  5. Step 5: Solve for x
    x = 168,701,586.01/13,520.80
  6. Step 6: Final answer
    x = 12,477.19

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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.