Home / 18,614.81-25,688.45-10,231.49

Finding the Fourth Proportional to 18,614.81, 25,688.45 and 10,231.49

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Solution

The fourth proportional to 18,614.81, 25,688.45 and 10,231.49 is: 14,119.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.81 : 25,688.45 = 10,231.49 : x
  2. Step 2: Convert to fraction form
    18,614.81/25,688.45 = 10,231.49/x
  3. Step 3: Cross multiply
    18,614.81x = 25,688.45 × 10,231.49
  4. Step 4: Simplify right side
    18,614.81x = 262,831,209.09
  5. Step 5: Solve for x
    x = 262,831,209.09/18,614.81
  6. Step 6: Final answer
    x = 14,119.47

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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.