Home / 13,035.26-19,385.18-12,620.07

Finding the Fourth Proportional to 13,035.26, 19,385.18 and 12,620.07

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Solution

The fourth proportional to 13,035.26, 19,385.18 and 12,620.07 is: 18,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.26 : 19,385.18 = 12,620.07 : x
  2. Step 2: Convert to fraction form
    13,035.26/19,385.18 = 12,620.07/x
  3. Step 3: Cross multiply
    13,035.26x = 19,385.18 × 12,620.07
  4. Step 4: Simplify right side
    13,035.26x = 244,642,231.64
  5. Step 5: Solve for x
    x = 244,642,231.64/13,035.26
  6. Step 6: Final answer
    x = 18,767.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.