Home / 13,803.90-19,051.83-7,834.38

Finding the Fourth Proportional to 13,803.90, 19,051.83 and 7,834.38

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Solution

The fourth proportional to 13,803.90, 19,051.83 and 7,834.38 is: 10,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.90 : 19,051.83 = 7,834.38 : x
  2. Step 2: Convert to fraction form
    13,803.90/19,051.83 = 7,834.38/x
  3. Step 3: Cross multiply
    13,803.90x = 19,051.83 × 7,834.38
  4. Step 4: Simplify right side
    13,803.90x = 149,259,275.92
  5. Step 5: Solve for x
    x = 149,259,275.92/13,803.90
  6. Step 6: Final answer
    x = 10,812.83

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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.