Home / 8,913.28-12,300.80-4,934.84

Finding the Fourth Proportional to 8,913.28, 12,300.80 and 4,934.84

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Solution

The fourth proportional to 8,913.28, 12,300.80 and 4,934.84 is: 6,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.28 : 12,300.80 = 4,934.84 : x
  2. Step 2: Convert to fraction form
    8,913.28/12,300.80 = 4,934.84/x
  3. Step 3: Cross multiply
    8,913.28x = 12,300.80 × 4,934.84
  4. Step 4: Simplify right side
    8,913.28x = 60,702,479.87
  5. Step 5: Solve for x
    x = 60,702,479.87/8,913.28
  6. Step 6: Final answer
    x = 6,810.34

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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.