Home / 10,922.85-15,075.50-6,446.34

Finding the Fourth Proportional to 10,922.85, 15,075.50 and 6,446.34

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Solution

The fourth proportional to 10,922.85, 15,075.50 and 6,446.34 is: 8,897.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922.85 : 15,075.50 = 6,446.34 : x
  2. Step 2: Convert to fraction form
    10,922.85/15,075.50 = 6,446.34/x
  3. Step 3: Cross multiply
    10,922.85x = 15,075.50 × 6,446.34
  4. Step 4: Simplify right side
    10,922.85x = 97,181,766.44
  5. Step 5: Solve for x
    x = 97,181,766.44/10,922.85
  6. Step 6: Final answer
    x = 8,897.11

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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.