Home / 11,545.56-15,933.12-6,441.40

Finding the Fourth Proportional to 11,545.56, 15,933.12 and 6,441.40

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Solution

The fourth proportional to 11,545.56, 15,933.12 and 6,441.40 is: 8,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.56 : 15,933.12 = 6,441.40 : x
  2. Step 2: Convert to fraction form
    11,545.56/15,933.12 = 6,441.40/x
  3. Step 3: Cross multiply
    11,545.56x = 15,933.12 × 6,441.40
  4. Step 4: Simplify right side
    11,545.56x = 102,631,599.17
  5. Step 5: Solve for x
    x = 102,631,599.17/11,545.56
  6. Step 6: Final answer
    x = 8,889.27

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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.