Home / 11,477.28-15,838.93-6,441.89

Finding the Fourth Proportional to 11,477.28, 15,838.93 and 6,441.89

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Solution

The fourth proportional to 11,477.28, 15,838.93 and 6,441.89 is: 8,889.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.28 : 15,838.93 = 6,441.89 : x
  2. Step 2: Convert to fraction form
    11,477.28/15,838.93 = 6,441.89/x
  3. Step 3: Cross multiply
    11,477.28x = 15,838.93 × 6,441.89
  4. Step 4: Simplify right side
    11,477.28x = 102,032,644.78
  5. Step 5: Solve for x
    x = 102,032,644.78/11,477.28
  6. Step 6: Final answer
    x = 8,889.97

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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.