Home / 10,406.21-14,360.92-5,690.49

Finding the Fourth Proportional to 10,406.21, 14,360.92 and 5,690.49

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Solution

The fourth proportional to 10,406.21, 14,360.92 and 5,690.49 is: 7,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.21 : 14,360.92 = 5,690.49 : x
  2. Step 2: Convert to fraction form
    10,406.21/14,360.92 = 5,690.49/x
  3. Step 3: Cross multiply
    10,406.21x = 14,360.92 × 5,690.49
  4. Step 4: Simplify right side
    10,406.21x = 81,720,643.20
  5. Step 5: Solve for x
    x = 81,720,643.20/10,406.21
  6. Step 6: Final answer
    x = 7,853.06

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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.