Home / 15,412.94-21,269.48-8,698.85

Finding the Fourth Proportional to 15,412.94, 21,269.48 and 8,698.85

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Solution

The fourth proportional to 15,412.94, 21,269.48 and 8,698.85 is: 12,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.94 : 21,269.48 = 8,698.85 : x
  2. Step 2: Convert to fraction form
    15,412.94/21,269.48 = 8,698.85/x
  3. Step 3: Cross multiply
    15,412.94x = 21,269.48 × 8,698.85
  4. Step 4: Simplify right side
    15,412.94x = 185,019,866.26
  5. Step 5: Solve for x
    x = 185,019,866.26/15,412.94
  6. Step 6: Final answer
    x = 12,004.19

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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.