Home / 13,287.54-19,905.65-10,144.34

Finding the Fourth Proportional to 13,287.54, 19,905.65 and 10,144.34

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Solution

The fourth proportional to 13,287.54, 19,905.65 and 10,144.34 is: 15,196.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.54 : 19,905.65 = 10,144.34 : x
  2. Step 2: Convert to fraction form
    13,287.54/19,905.65 = 10,144.34/x
  3. Step 3: Cross multiply
    13,287.54x = 19,905.65 × 10,144.34
  4. Step 4: Simplify right side
    13,287.54x = 201,929,643.96
  5. Step 5: Solve for x
    x = 201,929,643.96/13,287.54
  6. Step 6: Final answer
    x = 15,196.91

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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.