Home / 8,411.37-11,605.26-5,428.95

Finding the Fourth Proportional to 8,411.37, 11,605.26 and 5,428.95

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Solution

The fourth proportional to 8,411.37, 11,605.26 and 5,428.95 is: 7,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,411.37 : 11,605.26 = 5,428.95 : x
  2. Step 2: Convert to fraction form
    8,411.37/11,605.26 = 5,428.95/x
  3. Step 3: Cross multiply
    8,411.37x = 11,605.26 × 5,428.95
  4. Step 4: Simplify right side
    8,411.37x = 63,004,376.28
  5. Step 5: Solve for x
    x = 63,004,376.28/8,411.37
  6. Step 6: Final answer
    x = 7,490.38

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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.