Home / 10,291.85-14,203.30-5,815.79

Finding the Fourth Proportional to 10,291.85, 14,203.30 and 5,815.79

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Solution

The fourth proportional to 10,291.85, 14,203.30 and 5,815.79 is: 8,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.85 : 14,203.30 = 5,815.79 : x
  2. Step 2: Convert to fraction form
    10,291.85/14,203.30 = 5,815.79/x
  3. Step 3: Cross multiply
    10,291.85x = 14,203.30 × 5,815.79
  4. Step 4: Simplify right side
    10,291.85x = 82,603,339.09
  5. Step 5: Solve for x
    x = 82,603,339.09/10,291.85
  6. Step 6: Final answer
    x = 8,026.10

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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.