Home / 18,688.26-25,789.84-10,304.76

Finding the Fourth Proportional to 18,688.26, 25,789.84 and 10,304.76

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Solution

The fourth proportional to 18,688.26, 25,789.84 and 10,304.76 is: 14,220.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.26 : 25,789.84 = 10,304.76 : x
  2. Step 2: Convert to fraction form
    18,688.26/25,789.84 = 10,304.76/x
  3. Step 3: Cross multiply
    18,688.26x = 25,789.84 × 10,304.76
  4. Step 4: Simplify right side
    18,688.26x = 265,758,111.64
  5. Step 5: Solve for x
    x = 265,758,111.64/18,688.26
  6. Step 6: Final answer
    x = 14,220.59

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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.