Home / 13,431.36-18,534.42-7,462.92

Finding the Fourth Proportional to 13,431.36, 18,534.42 and 7,462.92

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Solution

The fourth proportional to 13,431.36, 18,534.42 and 7,462.92 is: 10,298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.36 : 18,534.42 = 7,462.92 : x
  2. Step 2: Convert to fraction form
    13,431.36/18,534.42 = 7,462.92/x
  3. Step 3: Cross multiply
    13,431.36x = 18,534.42 × 7,462.92
  4. Step 4: Simplify right side
    13,431.36x = 138,320,893.71
  5. Step 5: Solve for x
    x = 138,320,893.71/13,431.36
  6. Step 6: Final answer
    x = 10,298.35

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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.