Home / 13,085.55-18,054.90-8,845.20

Finding the Fourth Proportional to 13,085.55, 18,054.90 and 8,845.20

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Solution

The fourth proportional to 13,085.55, 18,054.90 and 8,845.20 is: 12,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.55 : 18,054.90 = 8,845.20 : x
  2. Step 2: Convert to fraction form
    13,085.55/18,054.90 = 8,845.20/x
  3. Step 3: Cross multiply
    13,085.55x = 18,054.90 × 8,845.20
  4. Step 4: Simplify right side
    13,085.55x = 159,699,201.48
  5. Step 5: Solve for x
    x = 159,699,201.48/13,085.55
  6. Step 6: Final answer
    x = 12,204.24

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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.