Home / 18,319.49-25,281.47-10,361.56

Finding the Fourth Proportional to 18,319.49, 25,281.47 and 10,361.56

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Solution

The fourth proportional to 18,319.49, 25,281.47 and 10,361.56 is: 14,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.49 : 25,281.47 = 10,361.56 : x
  2. Step 2: Convert to fraction form
    18,319.49/25,281.47 = 10,361.56/x
  3. Step 3: Cross multiply
    18,319.49x = 25,281.47 × 10,361.56
  4. Step 4: Simplify right side
    18,319.49x = 261,955,468.29
  5. Step 5: Solve for x
    x = 261,955,468.29/18,319.49
  6. Step 6: Final answer
    x = 14,299.28

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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.