Home / 15,454.15-21,329.39-8,741.86

Finding the Fourth Proportional to 15,454.15, 21,329.39 and 8,741.86

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Solution

The fourth proportional to 15,454.15, 21,329.39 and 8,741.86 is: 12,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.15 : 21,329.39 = 8,741.86 : x
  2. Step 2: Convert to fraction form
    15,454.15/21,329.39 = 8,741.86/x
  3. Step 3: Cross multiply
    15,454.15x = 21,329.39 × 8,741.86
  4. Step 4: Simplify right side
    15,454.15x = 186,458,541.27
  5. Step 5: Solve for x
    x = 186,458,541.27/15,454.15
  6. Step 6: Final answer
    x = 12,065.27

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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.