Home / 18,432.28-25,429.33-11,346.40

Finding the Fourth Proportional to 18,432.28, 25,429.33 and 11,346.40

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Solution

The fourth proportional to 18,432.28, 25,429.33 and 11,346.40 is: 15,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.28 : 25,429.33 = 11,346.40 : x
  2. Step 2: Convert to fraction form
    18,432.28/25,429.33 = 11,346.40/x
  3. Step 3: Cross multiply
    18,432.28x = 25,429.33 × 11,346.40
  4. Step 4: Simplify right side
    18,432.28x = 288,531,353.33
  5. Step 5: Solve for x
    x = 288,531,353.33/18,432.28
  6. Step 6: Final answer
    x = 15,653.59

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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.