Home / 13,525.40-18,663.36-7,556.84

Finding the Fourth Proportional to 13,525.40, 18,663.36 and 7,556.84

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Solution

The fourth proportional to 13,525.40, 18,663.36 and 7,556.84 is: 10,427.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.40 : 18,663.36 = 7,556.84 : x
  2. Step 2: Convert to fraction form
    13,525.40/18,663.36 = 7,556.84/x
  3. Step 3: Cross multiply
    13,525.40x = 18,663.36 × 7,556.84
  4. Step 4: Simplify right side
    13,525.40x = 141,036,025.38
  5. Step 5: Solve for x
    x = 141,036,025.38/13,525.40
  6. Step 6: Final answer
    x = 10,427.49

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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.