Home / 16,898.78-23,322.06-9,728.98

Finding the Fourth Proportional to 16,898.78, 23,322.06 and 9,728.98

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Solution

The fourth proportional to 16,898.78, 23,322.06 and 9,728.98 is: 13,427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898.78 : 23,322.06 = 9,728.98 : x
  2. Step 2: Convert to fraction form
    16,898.78/23,322.06 = 9,728.98/x
  3. Step 3: Cross multiply
    16,898.78x = 23,322.06 × 9,728.98
  4. Step 4: Simplify right side
    16,898.78x = 226,899,855.30
  5. Step 5: Solve for x
    x = 226,899,855.30/16,898.78
  6. Step 6: Final answer
    x = 13,427.00

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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.