Home / 13,361.71-18,426.93-11,472.70

Finding the Fourth Proportional to 13,361.71, 18,426.93 and 11,472.70

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Solution

The fourth proportional to 13,361.71, 18,426.93 and 11,472.70 is: 15,821.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.71 : 18,426.93 = 11,472.70 : x
  2. Step 2: Convert to fraction form
    13,361.71/18,426.93 = 11,472.70/x
  3. Step 3: Cross multiply
    13,361.71x = 18,426.93 × 11,472.70
  4. Step 4: Simplify right side
    13,361.71x = 211,406,639.81
  5. Step 5: Solve for x
    x = 211,406,639.81/13,361.71
  6. Step 6: Final answer
    x = 15,821.83

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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.