Home / 10,556.53-15,828.93-4,320.92

Finding the Fourth Proportional to 10,556.53, 15,828.93 and 4,320.92

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Solution

The fourth proportional to 10,556.53, 15,828.93 and 4,320.92 is: 6,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.53 : 15,828.93 = 4,320.92 : x
  2. Step 2: Convert to fraction form
    10,556.53/15,828.93 = 4,320.92/x
  3. Step 3: Cross multiply
    10,556.53x = 15,828.93 × 4,320.92
  4. Step 4: Simplify right side
    10,556.53x = 68,395,579.79
  5. Step 5: Solve for x
    x = 68,395,579.79/10,556.53
  6. Step 6: Final answer
    x = 6,478.98

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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.