Home / 11,545.91-15,933.35-6,240.72

Finding the Fourth Proportional to 11,545.91, 15,933.35 and 6,240.72

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Solution

The fourth proportional to 11,545.91, 15,933.35 and 6,240.72 is: 8,612.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.91 : 15,933.35 = 6,240.72 : x
  2. Step 2: Convert to fraction form
    11,545.91/15,933.35 = 6,240.72/x
  3. Step 3: Cross multiply
    11,545.91x = 15,933.35 × 6,240.72
  4. Step 4: Simplify right side
    11,545.91x = 99,435,544.81
  5. Step 5: Solve for x
    x = 99,435,544.81/11,545.91
  6. Step 6: Final answer
    x = 8,612.19

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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.