Home / 12,903.72-19,322.74-8,507.84

Finding the Fourth Proportional to 12,903.72, 19,322.74 and 8,507.84

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Solution

The fourth proportional to 12,903.72, 19,322.74 and 8,507.84 is: 12,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.72 : 19,322.74 = 8,507.84 : x
  2. Step 2: Convert to fraction form
    12,903.72/19,322.74 = 8,507.84/x
  3. Step 3: Cross multiply
    12,903.72x = 19,322.74 × 8,507.84
  4. Step 4: Simplify right side
    12,903.72x = 164,394,780.28
  5. Step 5: Solve for x
    x = 164,394,780.28/12,903.72
  6. Step 6: Final answer
    x = 12,740.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.