Home / 9,292-12,821.52-5,313.28

Finding the Fourth Proportional to 9,292, 12,821.52 and 5,313.28

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Solution

The fourth proportional to 9,292, 12,821.52 and 5,313.28 is: 7,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,292 : 12,821.52 = 5,313.28 : x
  2. Step 2: Convert to fraction form
    9,292/12,821.52 = 5,313.28/x
  3. Step 3: Cross multiply
    9,292x = 12,821.52 × 5,313.28
  4. Step 4: Simplify right side
    9,292x = 68,124,325.79
  5. Step 5: Solve for x
    x = 68,124,325.79/9,292
  6. Step 6: Final answer
    x = 7,331.50

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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.