Home / 18,933.52-26,111.28-11,860.72

Finding the Fourth Proportional to 18,933.52, 26,111.28 and 11,860.72

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Solution

The fourth proportional to 18,933.52, 26,111.28 and 11,860.72 is: 16,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.52 : 26,111.28 = 11,860.72 : x
  2. Step 2: Convert to fraction form
    18,933.52/26,111.28 = 11,860.72/x
  3. Step 3: Cross multiply
    18,933.52x = 26,111.28 × 11,860.72
  4. Step 4: Simplify right side
    18,933.52x = 309,698,580.92
  5. Step 5: Solve for x
    x = 309,698,580.92/18,933.52
  6. Step 6: Final answer
    x = 16,357.16

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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.