Home / 8,218.59-12,315.66-4,927.83

Finding the Fourth Proportional to 8,218.59, 12,315.66 and 4,927.83

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Solution

The fourth proportional to 8,218.59, 12,315.66 and 4,927.83 is: 7,384.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.59 : 12,315.66 = 4,927.83 : x
  2. Step 2: Convert to fraction form
    8,218.59/12,315.66 = 4,927.83/x
  3. Step 3: Cross multiply
    8,218.59x = 12,315.66 × 4,927.83
  4. Step 4: Simplify right side
    8,218.59x = 60,689,478.82
  5. Step 5: Solve for x
    x = 60,689,478.82/8,218.59
  6. Step 6: Final answer
    x = 7,384.41

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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.