Home / 13,749.96-18,975.36-7,462.36

Finding the Fourth Proportional to 13,749.96, 18,975.36 and 7,462.36

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Solution

The fourth proportional to 13,749.96, 18,975.36 and 7,462.36 is: 10,298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.96 : 18,975.36 = 7,462.36 : x
  2. Step 2: Convert to fraction form
    13,749.96/18,975.36 = 7,462.36/x
  3. Step 3: Cross multiply
    13,749.96x = 18,975.36 × 7,462.36
  4. Step 4: Simplify right side
    13,749.96x = 141,600,967.45
  5. Step 5: Solve for x
    x = 141,600,967.45/13,749.96
  6. Step 6: Final answer
    x = 10,298.28

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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.