Home / 11,471.45-15,830.33-6,435.56

Finding the Fourth Proportional to 11,471.45, 15,830.33 and 6,435.56

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Solution

The fourth proportional to 11,471.45, 15,830.33 and 6,435.56 is: 8,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.45 : 15,830.33 = 6,435.56 : x
  2. Step 2: Convert to fraction form
    11,471.45/15,830.33 = 6,435.56/x
  3. Step 3: Cross multiply
    11,471.45x = 15,830.33 × 6,435.56
  4. Step 4: Simplify right side
    11,471.45x = 101,877,094.20
  5. Step 5: Solve for x
    x = 101,877,094.20/11,471.45
  6. Step 6: Final answer
    x = 8,880.93

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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.