Home / 9,853.20-13,585.32-6,120.72

Finding the Fourth Proportional to 9,853.20, 13,585.32 and 6,120.72

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Solution

The fourth proportional to 9,853.20, 13,585.32 and 6,120.72 is: 8,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,853.20 : 13,585.32 = 6,120.72 : x
  2. Step 2: Convert to fraction form
    9,853.20/13,585.32 = 6,120.72/x
  3. Step 3: Cross multiply
    9,853.20x = 13,585.32 × 6,120.72
  4. Step 4: Simplify right side
    9,853.20x = 83,151,939.83
  5. Step 5: Solve for x
    x = 83,151,939.83/9,853.20
  6. Step 6: Final answer
    x = 8,439.08

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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.