Home / 10,829.52-16,237.28-7,120.51

Finding the Fourth Proportional to 10,829.52, 16,237.28 and 7,120.51

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Solution

The fourth proportional to 10,829.52, 16,237.28 and 7,120.51 is: 10,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,829.52 : 16,237.28 = 7,120.51 : x
  2. Step 2: Convert to fraction form
    10,829.52/16,237.28 = 7,120.51/x
  3. Step 3: Cross multiply
    10,829.52x = 16,237.28 × 7,120.51
  4. Step 4: Simplify right side
    10,829.52x = 115,617,666.79
  5. Step 5: Solve for x
    x = 115,617,666.79/10,829.52
  6. Step 6: Final answer
    x = 10,676.16

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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.