Home / 15,054.24-20,760.12-11,478.36

Finding the Fourth Proportional to 15,054.24, 20,760.12 and 11,478.36

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Solution

The fourth proportional to 15,054.24, 20,760.12 and 11,478.36 is: 15,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.24 : 20,760.12 = 11,478.36 : x
  2. Step 2: Convert to fraction form
    15,054.24/20,760.12 = 11,478.36/x
  3. Step 3: Cross multiply
    15,054.24x = 20,760.12 × 11,478.36
  4. Step 4: Simplify right side
    15,054.24x = 238,292,131.00
  5. Step 5: Solve for x
    x = 238,292,131.00/15,054.24
  6. Step 6: Final answer
    x = 15,828.90

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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.