Home / 10,529.79-15,793.78-4,290.47

Finding the Fourth Proportional to 10,529.79, 15,793.78 and 4,290.47

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Solution

The fourth proportional to 10,529.79, 15,793.78 and 4,290.47 is: 6,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.79 : 15,793.78 = 4,290.47 : x
  2. Step 2: Convert to fraction form
    10,529.79/15,793.78 = 4,290.47/x
  3. Step 3: Cross multiply
    10,529.79x = 15,793.78 × 4,290.47
  4. Step 4: Simplify right side
    10,529.79x = 67,762,739.28
  5. Step 5: Solve for x
    x = 67,762,739.28/10,529.79
  6. Step 6: Final answer
    x = 6,435.34

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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.