Home / 10,469.79-15,685.95-5,528.37

Finding the Fourth Proportional to 10,469.79, 15,685.95 and 5,528.37

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Solution

The fourth proportional to 10,469.79, 15,685.95 and 5,528.37 is: 8,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,469.79 : 15,685.95 = 5,528.37 : x
  2. Step 2: Convert to fraction form
    10,469.79/15,685.95 = 5,528.37/x
  3. Step 3: Cross multiply
    10,469.79x = 15,685.95 × 5,528.37
  4. Step 4: Simplify right side
    10,469.79x = 86,717,735.40
  5. Step 5: Solve for x
    x = 86,717,735.40/10,469.79
  6. Step 6: Final answer
    x = 8,282.66

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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.