Home / 13,819.01-19,070.29-7,851.00

Finding the Fourth Proportional to 13,819.01, 19,070.29 and 7,851.00

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Solution

The fourth proportional to 13,819.01, 19,070.29 and 7,851.00 is: 10,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.01 : 19,070.29 = 7,851.00 : x
  2. Step 2: Convert to fraction form
    13,819.01/19,070.29 = 7,851.00/x
  3. Step 3: Cross multiply
    13,819.01x = 19,070.29 × 7,851.00
  4. Step 4: Simplify right side
    13,819.01x = 149,720,892.36
  5. Step 5: Solve for x
    x = 149,720,892.36/13,819.01
  6. Step 6: Final answer
    x = 10,834.42

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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.