Home / 15,550.22-21,459.31-8,476.65

Finding the Fourth Proportional to 15,550.22, 21,459.31 and 8,476.65

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Solution

The fourth proportional to 15,550.22, 21,459.31 and 8,476.65 is: 11,697.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.22 : 21,459.31 = 8,476.65 : x
  2. Step 2: Convert to fraction form
    15,550.22/21,459.31 = 8,476.65/x
  3. Step 3: Cross multiply
    15,550.22x = 21,459.31 × 8,476.65
  4. Step 4: Simplify right side
    15,550.22x = 181,903,038.92
  5. Step 5: Solve for x
    x = 181,903,038.92/15,550.22
  6. Step 6: Final answer
    x = 11,697.78

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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.