Home / 16,209.21-22,368.64-9,135.55

Finding the Fourth Proportional to 16,209.21, 22,368.64 and 9,135.55

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Solution

The fourth proportional to 16,209.21, 22,368.64 and 9,135.55 is: 12,607.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,209.21 : 22,368.64 = 9,135.55 : x
  2. Step 2: Convert to fraction form
    16,209.21/22,368.64 = 9,135.55/x
  3. Step 3: Cross multiply
    16,209.21x = 22,368.64 × 9,135.55
  4. Step 4: Simplify right side
    16,209.21x = 204,349,694.47
  5. Step 5: Solve for x
    x = 204,349,694.47/16,209.21
  6. Step 6: Final answer
    x = 12,607.01

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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.