Home / 15,554.43-21,465.05-8,480.85

Finding the Fourth Proportional to 15,554.43, 21,465.05 and 8,480.85

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Solution

The fourth proportional to 15,554.43, 21,465.05 and 8,480.85 is: 11,703.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.43 : 21,465.05 = 8,480.85 : x
  2. Step 2: Convert to fraction form
    15,554.43/21,465.05 = 8,480.85/x
  3. Step 3: Cross multiply
    15,554.43x = 21,465.05 × 8,480.85
  4. Step 4: Simplify right side
    15,554.43x = 182,041,914.84
  5. Step 5: Solve for x
    x = 182,041,914.84/15,554.43
  6. Step 6: Final answer
    x = 11,703.54

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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.