Home / 10,873.61-16,305.14-5,320.45

Finding the Fourth Proportional to 10,873.61, 16,305.14 and 5,320.45

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Solution

The fourth proportional to 10,873.61, 16,305.14 and 5,320.45 is: 7,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,873.61 : 16,305.14 = 5,320.45 : x
  2. Step 2: Convert to fraction form
    10,873.61/16,305.14 = 5,320.45/x
  3. Step 3: Cross multiply
    10,873.61x = 16,305.14 × 5,320.45
  4. Step 4: Simplify right side
    10,873.61x = 86,750,682.11
  5. Step 5: Solve for x
    x = 86,750,682.11/10,873.61
  6. Step 6: Final answer
    x = 7,978.09

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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.