Home / 8,854.84-12,219.36-5,315.96

Finding the Fourth Proportional to 8,854.84, 12,219.36 and 5,315.96

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Solution

The fourth proportional to 8,854.84, 12,219.36 and 5,315.96 is: 7,335.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.84 : 12,219.36 = 5,315.96 : x
  2. Step 2: Convert to fraction form
    8,854.84/12,219.36 = 5,315.96/x
  3. Step 3: Cross multiply
    8,854.84x = 12,219.36 × 5,315.96
  4. Step 4: Simplify right side
    8,854.84x = 64,957,628.99
  5. Step 5: Solve for x
    x = 64,957,628.99/8,854.84
  6. Step 6: Final answer
    x = 7,335.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.