Home / 12,816.16-17,682.24-7,226.08

Finding the Fourth Proportional to 12,816.16, 17,682.24 and 7,226.08

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Solution

The fourth proportional to 12,816.16, 17,682.24 and 7,226.08 is: 9,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.16 : 17,682.24 = 7,226.08 : x
  2. Step 2: Convert to fraction form
    12,816.16/17,682.24 = 7,226.08/x
  3. Step 3: Cross multiply
    12,816.16x = 17,682.24 × 7,226.08
  4. Step 4: Simplify right side
    12,816.16x = 127,773,280.82
  5. Step 5: Solve for x
    x = 127,773,280.82/12,816.16
  6. Step 6: Final answer
    x = 9,969.70

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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.