Home / 11,709.18-16,159.26-6,931.87

Finding the Fourth Proportional to 11,709.18, 16,159.26 and 6,931.87

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Solution

The fourth proportional to 11,709.18, 16,159.26 and 6,931.87 is: 9,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.18 : 16,159.26 = 6,931.87 : x
  2. Step 2: Convert to fraction form
    11,709.18/16,159.26 = 6,931.87/x
  3. Step 3: Cross multiply
    11,709.18x = 16,159.26 × 6,931.87
  4. Step 4: Simplify right side
    11,709.18x = 112,013,808.82
  5. Step 5: Solve for x
    x = 112,013,808.82/11,709.18
  6. Step 6: Final answer
    x = 9,566.32

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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.