Home / 18,836.74-28,259.68-5,688.32

Finding the Fourth Proportional to 18,836.74, 28,259.68 and 5,688.32

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Solution

The fourth proportional to 18,836.74, 28,259.68 and 5,688.32 is: 8,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.74 : 28,259.68 = 5,688.32 : x
  2. Step 2: Convert to fraction form
    18,836.74/28,259.68 = 5,688.32/x
  3. Step 3: Cross multiply
    18,836.74x = 28,259.68 × 5,688.32
  4. Step 4: Simplify right side
    18,836.74x = 160,750,102.94
  5. Step 5: Solve for x
    x = 160,750,102.94/18,836.74
  6. Step 6: Final answer
    x = 8,533.86

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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.