Home / 13,981.03-19,295.19-10,438.09

Finding the Fourth Proportional to 13,981.03, 19,295.19 and 10,438.09

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Solution

The fourth proportional to 13,981.03, 19,295.19 and 10,438.09 is: 14,405.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.03 : 19,295.19 = 10,438.09 : x
  2. Step 2: Convert to fraction form
    13,981.03/19,295.19 = 10,438.09/x
  3. Step 3: Cross multiply
    13,981.03x = 19,295.19 × 10,438.09
  4. Step 4: Simplify right side
    13,981.03x = 201,404,929.79
  5. Step 5: Solve for x
    x = 201,404,929.79/13,981.03
  6. Step 6: Final answer
    x = 14,405.59

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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.