Home / 16,871.45-23,282.39-9,318.08

Finding the Fourth Proportional to 16,871.45, 23,282.39 and 9,318.08

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Solution

The fourth proportional to 16,871.45, 23,282.39 and 9,318.08 is: 12,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.45 : 23,282.39 = 9,318.08 : x
  2. Step 2: Convert to fraction form
    16,871.45/23,282.39 = 9,318.08/x
  3. Step 3: Cross multiply
    16,871.45x = 23,282.39 × 9,318.08
  4. Step 4: Simplify right side
    16,871.45x = 216,947,254.11
  5. Step 5: Solve for x
    x = 216,947,254.11/16,871.45
  6. Step 6: Final answer
    x = 12,858.84

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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.