Home / 12,372.19-18,525.08-10,403.89

Finding the Fourth Proportional to 12,372.19, 18,525.08 and 10,403.89

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Solution

The fourth proportional to 12,372.19, 18,525.08 and 10,403.89 is: 15,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.19 : 18,525.08 = 10,403.89 : x
  2. Step 2: Convert to fraction form
    12,372.19/18,525.08 = 10,403.89/x
  3. Step 3: Cross multiply
    12,372.19x = 18,525.08 × 10,403.89
  4. Step 4: Simplify right side
    12,372.19x = 192,732,842.54
  5. Step 5: Solve for x
    x = 192,732,842.54/12,372.19
  6. Step 6: Final answer
    x = 15,577.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.