Home / 18,875.46-28,313.58-6,867.20

Finding the Fourth Proportional to 18,875.46, 28,313.58 and 6,867.20

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Solution

The fourth proportional to 18,875.46, 28,313.58 and 6,867.20 is: 10,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.46 : 28,313.58 = 6,867.20 : x
  2. Step 2: Convert to fraction form
    18,875.46/28,313.58 = 6,867.20/x
  3. Step 3: Cross multiply
    18,875.46x = 28,313.58 × 6,867.20
  4. Step 4: Simplify right side
    18,875.46x = 194,435,016.58
  5. Step 5: Solve for x
    x = 194,435,016.58/18,875.46
  6. Step 6: Final answer
    x = 10,300.94

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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.