Home / 15,550.53-21,459.15-8,476.80

Finding the Fourth Proportional to 15,550.53, 21,459.15 and 8,476.80

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Solution

The fourth proportional to 15,550.53, 21,459.15 and 8,476.80 is: 11,697.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.53 : 21,459.15 = 8,476.80 : x
  2. Step 2: Convert to fraction form
    15,550.53/21,459.15 = 8,476.80/x
  3. Step 3: Cross multiply
    15,550.53x = 21,459.15 × 8,476.80
  4. Step 4: Simplify right side
    15,550.53x = 181,904,922.72
  5. Step 5: Solve for x
    x = 181,904,922.72/15,550.53
  6. Step 6: Final answer
    x = 11,697.67

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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.