Home / 10,533.12-15,786.01-4,285.87

Finding the Fourth Proportional to 10,533.12, 15,786.01 and 4,285.87

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Solution

The fourth proportional to 10,533.12, 15,786.01 and 4,285.87 is: 6,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.12 : 15,786.01 = 4,285.87 : x
  2. Step 2: Convert to fraction form
    10,533.12/15,786.01 = 4,285.87/x
  3. Step 3: Cross multiply
    10,533.12x = 15,786.01 × 4,285.87
  4. Step 4: Simplify right side
    10,533.12x = 67,656,786.68
  5. Step 5: Solve for x
    x = 67,656,786.68/10,533.12
  6. Step 6: Final answer
    x = 6,423.24

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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.