Home / 13,597.15-20,387.40-12,436.93

Finding the Fourth Proportional to 13,597.15, 20,387.40 and 12,436.93

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Solution

The fourth proportional to 13,597.15, 20,387.40 and 12,436.93 is: 18,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.15 : 20,387.40 = 12,436.93 : x
  2. Step 2: Convert to fraction form
    13,597.15/20,387.40 = 12,436.93/x
  3. Step 3: Cross multiply
    13,597.15x = 20,387.40 × 12,436.93
  4. Step 4: Simplify right side
    13,597.15x = 253,556,666.68
  5. Step 5: Solve for x
    x = 253,556,666.68/13,597.15
  6. Step 6: Final answer
    x = 18,647.78

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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.