Home / 12,403.22-18,504.23-11,387.16

Finding the Fourth Proportional to 12,403.22, 18,504.23 and 11,387.16

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Solution

The fourth proportional to 12,403.22, 18,504.23 and 11,387.16 is: 16,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.22 : 18,504.23 = 11,387.16 : x
  2. Step 2: Convert to fraction form
    12,403.22/18,504.23 = 11,387.16/x
  3. Step 3: Cross multiply
    12,403.22x = 18,504.23 × 11,387.16
  4. Step 4: Simplify right side
    12,403.22x = 210,710,570.75
  5. Step 5: Solve for x
    x = 210,710,570.75/12,403.22
  6. Step 6: Final answer
    x = 16,988.38

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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.