Home / 9,204.12-12,699.94-5,428.47

Finding the Fourth Proportional to 9,204.12, 12,699.94 and 5,428.47

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Solution

The fourth proportional to 9,204.12, 12,699.94 and 5,428.47 is: 7,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,204.12 : 12,699.94 = 5,428.47 : x
  2. Step 2: Convert to fraction form
    9,204.12/12,699.94 = 5,428.47/x
  3. Step 3: Cross multiply
    9,204.12x = 12,699.94 × 5,428.47
  4. Step 4: Simplify right side
    9,204.12x = 68,941,243.29
  5. Step 5: Solve for x
    x = 68,941,243.29/9,204.12
  6. Step 6: Final answer
    x = 7,490.26

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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.