Home / 9,690.12-13,370.32-6,337.86

Finding the Fourth Proportional to 9,690.12, 13,370.32 and 6,337.86

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Solution

The fourth proportional to 9,690.12, 13,370.32 and 6,337.86 is: 8,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690.12 : 13,370.32 = 6,337.86 : x
  2. Step 2: Convert to fraction form
    9,690.12/13,370.32 = 6,337.86/x
  3. Step 3: Cross multiply
    9,690.12x = 13,370.32 × 6,337.86
  4. Step 4: Simplify right side
    9,690.12x = 84,739,216.32
  5. Step 5: Solve for x
    x = 84,739,216.32/9,690.12
  6. Step 6: Final answer
    x = 8,744.91

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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.