Home / 9,211.28-12,701.51-6,221.93

Finding the Fourth Proportional to 9,211.28, 12,701.51 and 6,221.93

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Solution

The fourth proportional to 9,211.28, 12,701.51 and 6,221.93 is: 8,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.28 : 12,701.51 = 6,221.93 : x
  2. Step 2: Convert to fraction form
    9,211.28/12,701.51 = 6,221.93/x
  3. Step 3: Cross multiply
    9,211.28x = 12,701.51 × 6,221.93
  4. Step 4: Simplify right side
    9,211.28x = 79,027,811.50
  5. Step 5: Solve for x
    x = 79,027,811.50/9,211.28
  6. Step 6: Final answer
    x = 8,579.47

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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.