Home / 11,721.95-16,176.32-6,417.11

Finding the Fourth Proportional to 11,721.95, 16,176.32 and 6,417.11

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Solution

The fourth proportional to 11,721.95, 16,176.32 and 6,417.11 is: 8,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.95 : 16,176.32 = 6,417.11 : x
  2. Step 2: Convert to fraction form
    11,721.95/16,176.32 = 6,417.11/x
  3. Step 3: Cross multiply
    11,721.95x = 16,176.32 × 6,417.11
  4. Step 4: Simplify right side
    11,721.95x = 103,805,293.35
  5. Step 5: Solve for x
    x = 103,805,293.35/11,721.95
  6. Step 6: Final answer
    x = 8,855.63

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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.