Home / 15,535.44-21,438.94-8,461.84

Finding the Fourth Proportional to 15,535.44, 21,438.94 and 8,461.84

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Solution

The fourth proportional to 15,535.44, 21,438.94 and 8,461.84 is: 11,677.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.44 : 21,438.94 = 8,461.84 : x
  2. Step 2: Convert to fraction form
    15,535.44/21,438.94 = 8,461.84/x
  3. Step 3: Cross multiply
    15,535.44x = 21,438.94 × 8,461.84
  4. Step 4: Simplify right side
    15,535.44x = 181,412,880.05
  5. Step 5: Solve for x
    x = 181,412,880.05/15,535.44
  6. Step 6: Final answer
    x = 11,677.36

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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.