Home / 18,319.50-25,280.91-10,361.55

Finding the Fourth Proportional to 18,319.50, 25,280.91 and 10,361.55

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Solution

The fourth proportional to 18,319.50, 25,280.91 and 10,361.55 is: 14,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.50 : 25,280.91 = 10,361.55 : x
  2. Step 2: Convert to fraction form
    18,319.50/25,280.91 = 10,361.55/x
  3. Step 3: Cross multiply
    18,319.50x = 25,280.91 × 10,361.55
  4. Step 4: Simplify right side
    18,319.50x = 261,949,507.81
  5. Step 5: Solve for x
    x = 261,949,507.81/18,319.50
  6. Step 6: Final answer
    x = 14,298.94

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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.