Home / 12,056.08-16,650.40-8,289.20

Finding the Fourth Proportional to 12,056.08, 16,650.40 and 8,289.20

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Solution

The fourth proportional to 12,056.08, 16,650.40 and 8,289.20 is: 11,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,056.08 : 16,650.40 = 8,289.20 : x
  2. Step 2: Convert to fraction form
    12,056.08/16,650.40 = 8,289.20/x
  3. Step 3: Cross multiply
    12,056.08x = 16,650.40 × 8,289.20
  4. Step 4: Simplify right side
    12,056.08x = 138,018,495.68
  5. Step 5: Solve for x
    x = 138,018,495.68/12,056.08
  6. Step 6: Final answer
    x = 11,448.04

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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.