Home / 18,212.72-25,133.64-10,657.57

Finding the Fourth Proportional to 18,212.72, 25,133.64 and 10,657.57

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Solution

The fourth proportional to 18,212.72, 25,133.64 and 10,657.57 is: 14,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.72 : 25,133.64 = 10,657.57 : x
  2. Step 2: Convert to fraction form
    18,212.72/25,133.64 = 10,657.57/x
  3. Step 3: Cross multiply
    18,212.72x = 25,133.64 × 10,657.57
  4. Step 4: Simplify right side
    18,212.72x = 267,863,464.82
  5. Step 5: Solve for x
    x = 267,863,464.82/18,212.72
  6. Step 6: Final answer
    x = 14,707.50

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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.