Home / 12,648.02-18,956.07-6,409.60

Finding the Fourth Proportional to 12,648.02, 18,956.07 and 6,409.60

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Solution

The fourth proportional to 12,648.02, 18,956.07 and 6,409.60 is: 9,606.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.02 : 18,956.07 = 6,409.60 : x
  2. Step 2: Convert to fraction form
    12,648.02/18,956.07 = 6,409.60/x
  3. Step 3: Cross multiply
    12,648.02x = 18,956.07 × 6,409.60
  4. Step 4: Simplify right side
    12,648.02x = 121,500,731.49
  5. Step 5: Solve for x
    x = 121,500,731.49/12,648.02
  6. Step 6: Final answer
    x = 9,606.31

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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.