Home / 10,359.90-15,539.85-6,872.45

Finding the Fourth Proportional to 10,359.90, 15,539.85 and 6,872.45

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Solution

The fourth proportional to 10,359.90, 15,539.85 and 6,872.45 is: 10,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.90 : 15,539.85 = 6,872.45 : x
  2. Step 2: Convert to fraction form
    10,359.90/15,539.85 = 6,872.45/x
  3. Step 3: Cross multiply
    10,359.90x = 15,539.85 × 6,872.45
  4. Step 4: Simplify right side
    10,359.90x = 106,796,764.43
  5. Step 5: Solve for x
    x = 106,796,764.43/10,359.90
  6. Step 6: Final answer
    x = 10,308.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.