Home / 11,117.91-16,695.95-9,871.32

Finding the Fourth Proportional to 11,117.91, 16,695.95 and 9,871.32

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Solution

The fourth proportional to 11,117.91, 16,695.95 and 9,871.32 is: 14,823.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.91 : 16,695.95 = 9,871.32 : x
  2. Step 2: Convert to fraction form
    11,117.91/16,695.95 = 9,871.32/x
  3. Step 3: Cross multiply
    11,117.91x = 16,695.95 × 9,871.32
  4. Step 4: Simplify right side
    11,117.91x = 164,811,015.80
  5. Step 5: Solve for x
    x = 164,811,015.80/11,117.91
  6. Step 6: Final answer
    x = 14,823.92

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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.