Home / 18,639.79-25,723.61-10,683.55

Finding the Fourth Proportional to 18,639.79, 25,723.61 and 10,683.55

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Solution

The fourth proportional to 18,639.79, 25,723.61 and 10,683.55 is: 14,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.79 : 25,723.61 = 10,683.55 : x
  2. Step 2: Convert to fraction form
    18,639.79/25,723.61 = 10,683.55/x
  3. Step 3: Cross multiply
    18,639.79x = 25,723.61 × 10,683.55
  4. Step 4: Simplify right side
    18,639.79x = 274,819,473.62
  5. Step 5: Solve for x
    x = 274,819,473.62/18,639.79
  6. Step 6: Final answer
    x = 14,743.70

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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.