Home / 11,123.40-16,685.10-4,548.12

Finding the Fourth Proportional to 11,123.40, 16,685.10 and 4,548.12

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Solution

The fourth proportional to 11,123.40, 16,685.10 and 4,548.12 is: 6,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.40 : 16,685.10 = 4,548.12 : x
  2. Step 2: Convert to fraction form
    11,123.40/16,685.10 = 4,548.12/x
  3. Step 3: Cross multiply
    11,123.40x = 16,685.10 × 4,548.12
  4. Step 4: Simplify right side
    11,123.40x = 75,885,837.01
  5. Step 5: Solve for x
    x = 75,885,837.01/11,123.40
  6. Step 6: Final answer
    x = 6,822.18

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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.