Home / 9,288.90-12,818.68-5,310.10

Finding the Fourth Proportional to 9,288.90, 12,818.68 and 5,310.10

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Solution

The fourth proportional to 9,288.90, 12,818.68 and 5,310.10 is: 7,327.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.90 : 12,818.68 = 5,310.10 : x
  2. Step 2: Convert to fraction form
    9,288.90/12,818.68 = 5,310.10/x
  3. Step 3: Cross multiply
    9,288.90x = 12,818.68 × 5,310.10
  4. Step 4: Simplify right side
    9,288.90x = 68,068,472.67
  5. Step 5: Solve for x
    x = 68,068,472.67/9,288.90
  6. Step 6: Final answer
    x = 7,327.94

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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.