Home / 9,406.26-12,981.09-5,427.90

Finding the Fourth Proportional to 9,406.26, 12,981.09 and 5,427.90

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Solution

The fourth proportional to 9,406.26, 12,981.09 and 5,427.90 is: 7,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,406.26 : 12,981.09 = 5,427.90 : x
  2. Step 2: Convert to fraction form
    9,406.26/12,981.09 = 5,427.90/x
  3. Step 3: Cross multiply
    9,406.26x = 12,981.09 × 5,427.90
  4. Step 4: Simplify right side
    9,406.26x = 70,460,058.41
  5. Step 5: Solve for x
    x = 70,460,058.41/9,406.26
  6. Step 6: Final answer
    x = 7,490.76

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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.