Home / 9,310.36-12,840.51-7,897.72

Finding the Fourth Proportional to 9,310.36, 12,840.51 and 7,897.72

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Solution

The fourth proportional to 9,310.36, 12,840.51 and 7,897.72 is: 10,892.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,310.36 : 12,840.51 = 7,897.72 : x
  2. Step 2: Convert to fraction form
    9,310.36/12,840.51 = 7,897.72/x
  3. Step 3: Cross multiply
    9,310.36x = 12,840.51 × 7,897.72
  4. Step 4: Simplify right side
    9,310.36x = 101,410,752.64
  5. Step 5: Solve for x
    x = 101,410,752.64/9,310.36
  6. Step 6: Final answer
    x = 10,892.25

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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.