Home / 13,090.60-19,597.32-8,640.06

Finding the Fourth Proportional to 13,090.60, 19,597.32 and 8,640.06

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Solution

The fourth proportional to 13,090.60, 19,597.32 and 8,640.06 is: 12,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.60 : 19,597.32 = 8,640.06 : x
  2. Step 2: Convert to fraction form
    13,090.60/19,597.32 = 8,640.06/x
  3. Step 3: Cross multiply
    13,090.60x = 19,597.32 × 8,640.06
  4. Step 4: Simplify right side
    13,090.60x = 169,322,020.64
  5. Step 5: Solve for x
    x = 169,322,020.64/13,090.60
  6. Step 6: Final answer
    x = 12,934.63

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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.