Home / 12,368.61-18,559.82-12,268.19

Finding the Fourth Proportional to 12,368.61, 18,559.82 and 12,268.19

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Solution

The fourth proportional to 12,368.61, 18,559.82 and 12,268.19 is: 18,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.61 : 18,559.82 = 12,268.19 : x
  2. Step 2: Convert to fraction form
    12,368.61/18,559.82 = 12,268.19/x
  3. Step 3: Cross multiply
    12,368.61x = 18,559.82 × 12,268.19
  4. Step 4: Simplify right side
    12,368.61x = 227,695,398.13
  5. Step 5: Solve for x
    x = 227,695,398.13/12,368.61
  6. Step 6: Final answer
    x = 18,409.13

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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.