Home / 11,722.72-16,177.32-6,417.52

Finding the Fourth Proportional to 11,722.72, 16,177.32 and 6,417.52

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Solution

The fourth proportional to 11,722.72, 16,177.32 and 6,417.52 is: 8,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.72 : 16,177.32 = 6,417.52 : x
  2. Step 2: Convert to fraction form
    11,722.72/16,177.32 = 6,417.52/x
  3. Step 3: Cross multiply
    11,722.72x = 16,177.32 × 6,417.52
  4. Step 4: Simplify right side
    11,722.72x = 103,818,274.65
  5. Step 5: Solve for x
    x = 103,818,274.65/11,722.72
  6. Step 6: Final answer
    x = 8,856.16

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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.