Home / 15,550.98-21,460.32-8,477.40

Finding the Fourth Proportional to 15,550.98, 21,460.32 and 8,477.40

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Solution

The fourth proportional to 15,550.98, 21,460.32 and 8,477.40 is: 11,698.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.98 : 21,460.32 = 8,477.40 : x
  2. Step 2: Convert to fraction form
    15,550.98/21,460.32 = 8,477.40/x
  3. Step 3: Cross multiply
    15,550.98x = 21,460.32 × 8,477.40
  4. Step 4: Simplify right side
    15,550.98x = 181,927,716.77
  5. Step 5: Solve for x
    x = 181,927,716.77/15,550.98
  6. Step 6: Final answer
    x = 11,698.79

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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.