Home / 7,721.72-11,549.19-4,551.63

Finding the Fourth Proportional to 7,721.72, 11,549.19 and 4,551.63

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Solution

The fourth proportional to 7,721.72, 11,549.19 and 4,551.63 is: 6,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.72 : 11,549.19 = 4,551.63 : x
  2. Step 2: Convert to fraction form
    7,721.72/11,549.19 = 4,551.63/x
  3. Step 3: Cross multiply
    7,721.72x = 11,549.19 × 4,551.63
  4. Step 4: Simplify right side
    7,721.72x = 52,567,652.80
  5. Step 5: Solve for x
    x = 52,567,652.80/7,721.72
  6. Step 6: Final answer
    x = 6,807.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.