Home / 12,586.12-18,879.16-5,652.52

Finding the Fourth Proportional to 12,586.12, 18,879.16 and 5,652.52

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Solution

The fourth proportional to 12,586.12, 18,879.16 and 5,652.52 is: 8,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.12 : 18,879.16 = 5,652.52 : x
  2. Step 2: Convert to fraction form
    12,586.12/18,879.16 = 5,652.52/x
  3. Step 3: Cross multiply
    12,586.12x = 18,879.16 × 5,652.52
  4. Step 4: Simplify right side
    12,586.12x = 106,714,829.48
  5. Step 5: Solve for x
    x = 106,714,829.48/12,586.12
  6. Step 6: Final answer
    x = 8,478.77

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1.5x scale

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.