Home / 12,409.88-18,525.47-10,635.75

Finding the Fourth Proportional to 12,409.88, 18,525.47 and 10,635.75

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Solution

The fourth proportional to 12,409.88, 18,525.47 and 10,635.75 is: 15,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.88 : 18,525.47 = 10,635.75 : x
  2. Step 2: Convert to fraction form
    12,409.88/18,525.47 = 10,635.75/x
  3. Step 3: Cross multiply
    12,409.88x = 18,525.47 × 10,635.75
  4. Step 4: Simplify right side
    12,409.88x = 197,032,214.37
  5. Step 5: Solve for x
    x = 197,032,214.37/12,409.88
  6. Step 6: Final answer
    x = 15,877.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.