Home / 18,890.46-28,335.69-6,410.50

Finding the Fourth Proportional to 18,890.46, 28,335.69 and 6,410.50

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Solution

The fourth proportional to 18,890.46, 28,335.69 and 6,410.50 is: 9,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.46 : 28,335.69 = 6,410.50 : x
  2. Step 2: Convert to fraction form
    18,890.46/28,335.69 = 6,410.50/x
  3. Step 3: Cross multiply
    18,890.46x = 28,335.69 × 6,410.50
  4. Step 4: Simplify right side
    18,890.46x = 181,645,869.91
  5. Step 5: Solve for x
    x = 181,645,869.91/18,890.46
  6. Step 6: Final answer
    x = 9,615.75

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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.