Home / 13,255.02-18,272.60-9,263.72

Finding the Fourth Proportional to 13,255.02, 18,272.60 and 9,263.72

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Solution

The fourth proportional to 13,255.02, 18,272.60 and 9,263.72 is: 12,770.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.02 : 18,272.60 = 9,263.72 : x
  2. Step 2: Convert to fraction form
    13,255.02/18,272.60 = 9,263.72/x
  3. Step 3: Cross multiply
    13,255.02x = 18,272.60 × 9,263.72
  4. Step 4: Simplify right side
    13,255.02x = 169,272,250.07
  5. Step 5: Solve for x
    x = 169,272,250.07/13,255.02
  6. Step 6: Final answer
    x = 12,770.43

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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.