Home / 13,959.89-19,244.23-11,438.01

Finding the Fourth Proportional to 13,959.89, 19,244.23 and 11,438.01

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Solution

The fourth proportional to 13,959.89, 19,244.23 and 11,438.01 is: 15,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.89 : 19,244.23 = 11,438.01 : x
  2. Step 2: Convert to fraction form
    13,959.89/19,244.23 = 11,438.01/x
  3. Step 3: Cross multiply
    13,959.89x = 19,244.23 × 11,438.01
  4. Step 4: Simplify right side
    13,959.89x = 220,115,730.93
  5. Step 5: Solve for x
    x = 220,115,730.93/13,959.89
  6. Step 6: Final answer
    x = 15,767.72

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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.