Home / 18,724.84-28,084.74-5,574.76

Finding the Fourth Proportional to 18,724.84, 28,084.74 and 5,574.76

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Solution

The fourth proportional to 18,724.84, 28,084.74 and 5,574.76 is: 8,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724.84 : 28,084.74 = 5,574.76 : x
  2. Step 2: Convert to fraction form
    18,724.84/28,084.74 = 5,574.76/x
  3. Step 3: Cross multiply
    18,724.84x = 28,084.74 × 5,574.76
  4. Step 4: Simplify right side
    18,724.84x = 156,565,685.16
  5. Step 5: Solve for x
    x = 156,565,685.16/18,724.84
  6. Step 6: Final answer
    x = 8,361.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.