Home / 18,346.86-25,315.46-11,971.77

Finding the Fourth Proportional to 18,346.86, 25,315.46 and 11,971.77

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Solution

The fourth proportional to 18,346.86, 25,315.46 and 11,971.77 is: 16,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.86 : 25,315.46 = 11,971.77 : x
  2. Step 2: Convert to fraction form
    18,346.86/25,315.46 = 11,971.77/x
  3. Step 3: Cross multiply
    18,346.86x = 25,315.46 × 11,971.77
  4. Step 4: Simplify right side
    18,346.86x = 303,070,804.71
  5. Step 5: Solve for x
    x = 303,070,804.71/18,346.86
  6. Step 6: Final answer
    x = 16,518.95

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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.