Home / 8,913.20-12,300.05-4,934.22

Finding the Fourth Proportional to 8,913.20, 12,300.05 and 4,934.22

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Solution

The fourth proportional to 8,913.20, 12,300.05 and 4,934.22 is: 6,809.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.20 : 12,300.05 = 4,934.22 : x
  2. Step 2: Convert to fraction form
    8,913.20/12,300.05 = 4,934.22/x
  3. Step 3: Cross multiply
    8,913.20x = 12,300.05 × 4,934.22
  4. Step 4: Simplify right side
    8,913.20x = 60,691,128.04
  5. Step 5: Solve for x
    x = 60,691,128.04/8,913.20
  6. Step 6: Final answer
    x = 6,809.13

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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.