Home / 11,722.41-16,176.95-6,417.55

Finding the Fourth Proportional to 11,722.41, 16,176.95 and 6,417.55

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Solution

The fourth proportional to 11,722.41, 16,176.95 and 6,417.55 is: 8,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.41 : 16,176.95 = 6,417.55 : x
  2. Step 2: Convert to fraction form
    11,722.41/16,176.95 = 6,417.55/x
  3. Step 3: Cross multiply
    11,722.41x = 16,176.95 × 6,417.55
  4. Step 4: Simplify right side
    11,722.41x = 103,816,385.47
  5. Step 5: Solve for x
    x = 103,816,385.47/11,722.41
  6. Step 6: Final answer
    x = 8,856.23

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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.