Home / 14,828.08-20,461.85-8,453.78

Finding the Fourth Proportional to 14,828.08, 20,461.85 and 8,453.78

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Solution

The fourth proportional to 14,828.08, 20,461.85 and 8,453.78 is: 11,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,828.08 : 20,461.85 = 8,453.78 : x
  2. Step 2: Convert to fraction form
    14,828.08/20,461.85 = 8,453.78/x
  3. Step 3: Cross multiply
    14,828.08x = 20,461.85 × 8,453.78
  4. Step 4: Simplify right side
    14,828.08x = 172,979,978.29
  5. Step 5: Solve for x
    x = 172,979,978.29/14,828.08
  6. Step 6: Final answer
    x = 11,665.70

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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.