Home / 13,364.64-18,431.01-11,475.63

Finding the Fourth Proportional to 13,364.64, 18,431.01 and 11,475.63

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Solution

The fourth proportional to 13,364.64, 18,431.01 and 11,475.63 is: 15,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.64 : 18,431.01 = 11,475.63 : x
  2. Step 2: Convert to fraction form
    13,364.64/18,431.01 = 11,475.63/x
  3. Step 3: Cross multiply
    13,364.64x = 18,431.01 × 11,475.63
  4. Step 4: Simplify right side
    13,364.64x = 211,507,451.29
  5. Step 5: Solve for x
    x = 211,507,451.29/13,364.64
  6. Step 6: Final answer
    x = 15,825.90

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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.