Home / 12,903.62-19,355.40-8,520.03

Finding the Fourth Proportional to 12,903.62, 19,355.40 and 8,520.03

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Solution

The fourth proportional to 12,903.62, 19,355.40 and 8,520.03 is: 12,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.62 : 19,355.40 = 8,520.03 : x
  2. Step 2: Convert to fraction form
    12,903.62/19,355.40 = 8,520.03/x
  3. Step 3: Cross multiply
    12,903.62x = 19,355.40 × 8,520.03
  4. Step 4: Simplify right side
    12,903.62x = 164,908,588.66
  5. Step 5: Solve for x
    x = 164,908,588.66/12,903.62
  6. Step 6: Final answer
    x = 12,780.03

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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.