Home / 12,918.29-19,354.04-10,851.58

Finding the Fourth Proportional to 12,918.29, 19,354.04 and 10,851.58

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Solution

The fourth proportional to 12,918.29, 19,354.04 and 10,851.58 is: 16,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.29 : 19,354.04 = 10,851.58 : x
  2. Step 2: Convert to fraction form
    12,918.29/19,354.04 = 10,851.58/x
  3. Step 3: Cross multiply
    12,918.29x = 19,354.04 × 10,851.58
  4. Step 4: Simplify right side
    12,918.29x = 210,021,762.36
  5. Step 5: Solve for x
    x = 210,021,762.36/12,918.29
  6. Step 6: Final answer
    x = 16,257.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.