Home / 9,343.44-12,905.10-6,821.51

Finding the Fourth Proportional to 9,343.44, 12,905.10 and 6,821.51

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Solution

The fourth proportional to 9,343.44, 12,905.10 and 6,821.51 is: 9,421.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.44 : 12,905.10 = 6,821.51 : x
  2. Step 2: Convert to fraction form
    9,343.44/12,905.10 = 6,821.51/x
  3. Step 3: Cross multiply
    9,343.44x = 12,905.10 × 6,821.51
  4. Step 4: Simplify right side
    9,343.44x = 88,032,204.18
  5. Step 5: Solve for x
    x = 88,032,204.18/9,343.44
  6. Step 6: Final answer
    x = 9,421.82

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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.