Home / 12,239.16-16,900.31-9,209.01

Finding the Fourth Proportional to 12,239.16, 16,900.31 and 9,209.01

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Solution

The fourth proportional to 12,239.16, 16,900.31 and 9,209.01 is: 12,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.16 : 16,900.31 = 9,209.01 : x
  2. Step 2: Convert to fraction form
    12,239.16/16,900.31 = 9,209.01/x
  3. Step 3: Cross multiply
    12,239.16x = 16,900.31 × 9,209.01
  4. Step 4: Simplify right side
    12,239.16x = 155,635,123.79
  5. Step 5: Solve for x
    x = 155,635,123.79/12,239.16
  6. Step 6: Final answer
    x = 12,716.16

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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.