Home / 18,864.86-28,295.65-6,384.61

Finding the Fourth Proportional to 18,864.86, 28,295.65 and 6,384.61

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Solution

The fourth proportional to 18,864.86, 28,295.65 and 6,384.61 is: 9,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.86 : 28,295.65 = 6,384.61 : x
  2. Step 2: Convert to fraction form
    18,864.86/28,295.65 = 6,384.61/x
  3. Step 3: Cross multiply
    18,864.86x = 28,295.65 × 6,384.61
  4. Step 4: Simplify right side
    18,864.86x = 180,656,592.09
  5. Step 5: Solve for x
    x = 180,656,592.09/18,864.86
  6. Step 6: Final answer
    x = 9,576.36

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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.