Home / 10,853.12-16,280.90-3,455.87

Finding the Fourth Proportional to 10,853.12, 16,280.90 and 3,455.87

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Solution

The fourth proportional to 10,853.12, 16,280.90 and 3,455.87 is: 5,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.12 : 16,280.90 = 3,455.87 : x
  2. Step 2: Convert to fraction form
    10,853.12/16,280.90 = 3,455.87/x
  3. Step 3: Cross multiply
    10,853.12x = 16,280.90 × 3,455.87
  4. Step 4: Simplify right side
    10,853.12x = 56,264,575.20
  5. Step 5: Solve for x
    x = 56,264,575.20/10,853.12
  6. Step 6: Final answer
    x = 5,184.19

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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.