Home / 18,922.86-26,111.16-11,368.08

Finding the Fourth Proportional to 18,922.86, 26,111.16 and 11,368.08

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Solution

The fourth proportional to 18,922.86, 26,111.16 and 11,368.08 is: 15,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.86 : 26,111.16 = 11,368.08 : x
  2. Step 2: Convert to fraction form
    18,922.86/26,111.16 = 11,368.08/x
  3. Step 3: Cross multiply
    18,922.86x = 26,111.16 × 11,368.08
  4. Step 4: Simplify right side
    18,922.86x = 296,833,755.77
  5. Step 5: Solve for x
    x = 296,833,755.77/18,922.86
  6. Step 6: Final answer
    x = 15,686.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.