Home / 13,525.31-18,662.64-7,557.03

Finding the Fourth Proportional to 13,525.31, 18,662.64 and 7,557.03

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Solution

The fourth proportional to 13,525.31, 18,662.64 and 7,557.03 is: 10,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.31 : 18,662.64 = 7,557.03 : x
  2. Step 2: Convert to fraction form
    13,525.31/18,662.64 = 7,557.03/x
  3. Step 3: Cross multiply
    13,525.31x = 18,662.64 × 7,557.03
  4. Step 4: Simplify right side
    13,525.31x = 141,034,130.36
  5. Step 5: Solve for x
    x = 141,034,130.36/13,525.31
  6. Step 6: Final answer
    x = 10,427.42

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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.