Home / 12,416.16-18,580.48-8,649.66

Finding the Fourth Proportional to 12,416.16, 18,580.48 and 8,649.66

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Solution

The fourth proportional to 12,416.16, 18,580.48 and 8,649.66 is: 12,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.16 : 18,580.48 = 8,649.66 : x
  2. Step 2: Convert to fraction form
    12,416.16/18,580.48 = 8,649.66/x
  3. Step 3: Cross multiply
    12,416.16x = 18,580.48 × 8,649.66
  4. Step 4: Simplify right side
    12,416.16x = 160,714,834.64
  5. Step 5: Solve for x
    x = 160,714,834.64/12,416.16
  6. Step 6: Final answer
    x = 12,944.00

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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.