Home / 13,134.08-18,125.02-8,418.35

Finding the Fourth Proportional to 13,134.08, 18,125.02 and 8,418.35

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Solution

The fourth proportional to 13,134.08, 18,125.02 and 8,418.35 is: 11,617.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.08 : 18,125.02 = 8,418.35 : x
  2. Step 2: Convert to fraction form
    13,134.08/18,125.02 = 8,418.35/x
  3. Step 3: Cross multiply
    13,134.08x = 18,125.02 × 8,418.35
  4. Step 4: Simplify right side
    13,134.08x = 152,582,786.38
  5. Step 5: Solve for x
    x = 152,582,786.38/13,134.08
  6. Step 6: Final answer
    x = 11,617.32

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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.