Home / 9,291.47-12,818.57-5,310.44

Finding the Fourth Proportional to 9,291.47, 12,818.57 and 5,310.44

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Solution

The fourth proportional to 9,291.47, 12,818.57 and 5,310.44 is: 7,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.47 : 12,818.57 = 5,310.44 : x
  2. Step 2: Convert to fraction form
    9,291.47/12,818.57 = 5,310.44/x
  3. Step 3: Cross multiply
    9,291.47x = 12,818.57 × 5,310.44
  4. Step 4: Simplify right side
    9,291.47x = 68,072,246.87
  5. Step 5: Solve for x
    x = 68,072,246.87/9,291.47
  6. Step 6: Final answer
    x = 7,326.32

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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.