Home / 18,812.34-25,960.95-10,428.84

Finding the Fourth Proportional to 18,812.34, 25,960.95 and 10,428.84

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Solution

The fourth proportional to 18,812.34, 25,960.95 and 10,428.84 is: 14,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.34 : 25,960.95 = 10,428.84 : x
  2. Step 2: Convert to fraction form
    18,812.34/25,960.95 = 10,428.84/x
  3. Step 3: Cross multiply
    18,812.34x = 25,960.95 × 10,428.84
  4. Step 4: Simplify right side
    18,812.34x = 270,742,593.80
  5. Step 5: Solve for x
    x = 270,742,593.80/18,812.34
  6. Step 6: Final answer
    x = 14,391.76

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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.