Home / 8,271.29-11,409.58-5,439.17

Finding the Fourth Proportional to 8,271.29, 11,409.58 and 5,439.17

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Solution

The fourth proportional to 8,271.29, 11,409.58 and 5,439.17 is: 7,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.29 : 11,409.58 = 5,439.17 : x
  2. Step 2: Convert to fraction form
    8,271.29/11,409.58 = 5,439.17/x
  3. Step 3: Cross multiply
    8,271.29x = 11,409.58 × 5,439.17
  4. Step 4: Simplify right side
    8,271.29x = 62,058,645.25
  5. Step 5: Solve for x
    x = 62,058,645.25/8,271.29
  6. Step 6: Final answer
    x = 7,502.90

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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.