Home / 11,477.08-15,837.89-6,441.72

Finding the Fourth Proportional to 11,477.08, 15,837.89 and 6,441.72

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Solution

The fourth proportional to 11,477.08, 15,837.89 and 6,441.72 is: 8,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.08 : 15,837.89 = 6,441.72 : x
  2. Step 2: Convert to fraction form
    11,477.08/15,837.89 = 6,441.72/x
  3. Step 3: Cross multiply
    11,477.08x = 15,837.89 × 6,441.72
  4. Step 4: Simplify right side
    11,477.08x = 102,023,252.77
  5. Step 5: Solve for x
    x = 102,023,252.77/11,477.08
  6. Step 6: Final answer
    x = 8,889.30

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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.