Home / 16,855.68-23,259.08-9,780.72

Finding the Fourth Proportional to 16,855.68, 23,259.08 and 9,780.72

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Solution

The fourth proportional to 16,855.68, 23,259.08 and 9,780.72 is: 13,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.68 : 23,259.08 = 9,780.72 : x
  2. Step 2: Convert to fraction form
    16,855.68/23,259.08 = 9,780.72/x
  3. Step 3: Cross multiply
    16,855.68x = 23,259.08 × 9,780.72
  4. Step 4: Simplify right side
    16,855.68x = 227,490,548.94
  5. Step 5: Solve for x
    x = 227,490,548.94/16,855.68
  6. Step 6: Final answer
    x = 13,496.37

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Half scale
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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.