Home / 16,782.66-23,159.18-9,709.20

Finding the Fourth Proportional to 16,782.66, 23,159.18 and 9,709.20

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Solution

The fourth proportional to 16,782.66, 23,159.18 and 9,709.20 is: 13,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.66 : 23,159.18 = 9,709.20 : x
  2. Step 2: Convert to fraction form
    16,782.66/23,159.18 = 9,709.20/x
  3. Step 3: Cross multiply
    16,782.66x = 23,159.18 × 9,709.20
  4. Step 4: Simplify right side
    16,782.66x = 224,857,134.73
  5. Step 5: Solve for x
    x = 224,857,134.73/16,782.66
  6. Step 6: Final answer
    x = 13,398.18

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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.