Home / 18,628.64-25,708.60-10,669.04

Finding the Fourth Proportional to 18,628.64, 25,708.60 and 10,669.04

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Solution

The fourth proportional to 18,628.64, 25,708.60 and 10,669.04 is: 14,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.64 : 25,708.60 = 10,669.04 : x
  2. Step 2: Convert to fraction form
    18,628.64/25,708.60 = 10,669.04/x
  3. Step 3: Cross multiply
    18,628.64x = 25,708.60 × 10,669.04
  4. Step 4: Simplify right side
    18,628.64x = 274,286,081.74
  5. Step 5: Solve for x
    x = 274,286,081.74/18,628.64
  6. Step 6: Final answer
    x = 14,723.89

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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.