Home / 13,783.80-19,021.40-7,496.14

Finding the Fourth Proportional to 13,783.80, 19,021.40 and 7,496.14

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Solution

The fourth proportional to 13,783.80, 19,021.40 and 7,496.14 is: 10,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.80 : 19,021.40 = 7,496.14 : x
  2. Step 2: Convert to fraction form
    13,783.80/19,021.40 = 7,496.14/x
  3. Step 3: Cross multiply
    13,783.80x = 19,021.40 × 7,496.14
  4. Step 4: Simplify right side
    13,783.80x = 142,587,077.40
  5. Step 5: Solve for x
    x = 142,587,077.40/13,783.80
  6. Step 6: Final answer
    x = 10,344.54

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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.