Home / 11,445.05-15,795.69-6,409.55

Finding the Fourth Proportional to 11,445.05, 15,795.69 and 6,409.55

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Solution

The fourth proportional to 11,445.05, 15,795.69 and 6,409.55 is: 8,846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.05 : 15,795.69 = 6,409.55 : x
  2. Step 2: Convert to fraction form
    11,445.05/15,795.69 = 6,409.55/x
  3. Step 3: Cross multiply
    11,445.05x = 15,795.69 × 6,409.55
  4. Step 4: Simplify right side
    11,445.05x = 101,243,264.84
  5. Step 5: Solve for x
    x = 101,243,264.84/11,445.05
  6. Step 6: Final answer
    x = 8,846.03

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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.