Home / 8,921.24-12,283.20-6,789.93

Finding the Fourth Proportional to 8,921.24, 12,283.20 and 6,789.93

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Solution

The fourth proportional to 8,921.24, 12,283.20 and 6,789.93 is: 9,348.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.24 : 12,283.20 = 6,789.93 : x
  2. Step 2: Convert to fraction form
    8,921.24/12,283.20 = 6,789.93/x
  3. Step 3: Cross multiply
    8,921.24x = 12,283.20 × 6,789.93
  4. Step 4: Simplify right side
    8,921.24x = 83,402,068.18
  5. Step 5: Solve for x
    x = 83,402,068.18/8,921.24
  6. Step 6: Final answer
    x = 9,348.71

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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.