Home / 11,724.98-16,176.51-6,688.40

Finding the Fourth Proportional to 11,724.98, 16,176.51 and 6,688.40

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Solution

The fourth proportional to 11,724.98, 16,176.51 and 6,688.40 is: 9,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.98 : 16,176.51 = 6,688.40 : x
  2. Step 2: Convert to fraction form
    11,724.98/16,176.51 = 6,688.40/x
  3. Step 3: Cross multiply
    11,724.98x = 16,176.51 × 6,688.40
  4. Step 4: Simplify right side
    11,724.98x = 108,194,888.60
  5. Step 5: Solve for x
    x = 108,194,888.60/11,724.98
  6. Step 6: Final answer
    x = 9,227.73

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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.