Home / 16,782.40-23,158.80-9,227.28

Finding the Fourth Proportional to 16,782.40, 23,158.80 and 9,227.28

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Solution

The fourth proportional to 16,782.40, 23,158.80 and 9,227.28 is: 12,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.40 : 23,158.80 = 9,227.28 : x
  2. Step 2: Convert to fraction form
    16,782.40/23,158.80 = 9,227.28/x
  3. Step 3: Cross multiply
    16,782.40x = 23,158.80 × 9,227.28
  4. Step 4: Simplify right side
    16,782.40x = 213,692,732.06
  5. Step 5: Solve for x
    x = 213,692,732.06/16,782.40
  6. Step 6: Final answer
    x = 12,733.14

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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.