Home / 14,813.56-20,442.72-8,439.85

Finding the Fourth Proportional to 14,813.56, 20,442.72 and 8,439.85

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Solution

The fourth proportional to 14,813.56, 20,442.72 and 8,439.85 is: 11,647.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,813.56 : 20,442.72 = 8,439.85 : x
  2. Step 2: Convert to fraction form
    14,813.56/20,442.72 = 8,439.85/x
  3. Step 3: Cross multiply
    14,813.56x = 20,442.72 × 8,439.85
  4. Step 4: Simplify right side
    14,813.56x = 172,533,490.39
  5. Step 5: Solve for x
    x = 172,533,490.39/14,813.56
  6. Step 6: Final answer
    x = 11,647.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.