Home / 10,921.42-16,357.51-6,529.66

Finding the Fourth Proportional to 10,921.42, 16,357.51 and 6,529.66

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Solution

The fourth proportional to 10,921.42, 16,357.51 and 6,529.66 is: 9,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.42 : 16,357.51 = 6,529.66 : x
  2. Step 2: Convert to fraction form
    10,921.42/16,357.51 = 6,529.66/x
  3. Step 3: Cross multiply
    10,921.42x = 16,357.51 × 6,529.66
  4. Step 4: Simplify right side
    10,921.42x = 106,808,978.75
  5. Step 5: Solve for x
    x = 106,808,978.75/10,921.42
  6. Step 6: Final answer
    x = 9,779.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.