Home / 11,031.72-15,219.54-6,554.58

Finding the Fourth Proportional to 11,031.72, 15,219.54 and 6,554.58

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Solution

The fourth proportional to 11,031.72, 15,219.54 and 6,554.58 is: 9,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.72 : 15,219.54 = 6,554.58 : x
  2. Step 2: Convert to fraction form
    11,031.72/15,219.54 = 6,554.58/x
  3. Step 3: Cross multiply
    11,031.72x = 15,219.54 × 6,554.58
  4. Step 4: Simplify right side
    11,031.72x = 99,757,692.49
  5. Step 5: Solve for x
    x = 99,757,692.49/11,031.72
  6. Step 6: Final answer
    x = 9,042.80

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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.