Home / 18,836.49-28,259.28-5,688.09

Finding the Fourth Proportional to 18,836.49, 28,259.28 and 5,688.09

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Solution

The fourth proportional to 18,836.49, 28,259.28 and 5,688.09 is: 8,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.49 : 28,259.28 = 5,688.09 : x
  2. Step 2: Convert to fraction form
    18,836.49/28,259.28 = 5,688.09/x
  3. Step 3: Cross multiply
    18,836.49x = 28,259.28 × 5,688.09
  4. Step 4: Simplify right side
    18,836.49x = 160,741,327.98
  5. Step 5: Solve for x
    x = 160,741,327.98/18,836.49
  6. Step 6: Final answer
    x = 8,533.51

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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.