Home / 18,344.81-25,315.95-10,791.45

Finding the Fourth Proportional to 18,344.81, 25,315.95 and 10,791.45

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Solution

The fourth proportional to 18,344.81, 25,315.95 and 10,791.45 is: 14,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.81 : 25,315.95 = 10,791.45 : x
  2. Step 2: Convert to fraction form
    18,344.81/25,315.95 = 10,791.45/x
  3. Step 3: Cross multiply
    18,344.81x = 25,315.95 × 10,791.45
  4. Step 4: Simplify right side
    18,344.81x = 273,195,808.63
  5. Step 5: Solve for x
    x = 273,195,808.63/18,344.81
  6. Step 6: Final answer
    x = 14,892.27

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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.