Home / 12,900.92-19,354.56-3,666.92

Finding the Fourth Proportional to 12,900.92, 19,354.56 and 3,666.92

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Solution

The fourth proportional to 12,900.92, 19,354.56 and 3,666.92 is: 5,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.92 : 19,354.56 = 3,666.92 : x
  2. Step 2: Convert to fraction form
    12,900.92/19,354.56 = 3,666.92/x
  3. Step 3: Cross multiply
    12,900.92x = 19,354.56 × 3,666.92
  4. Step 4: Simplify right side
    12,900.92x = 70,971,623.16
  5. Step 5: Solve for x
    x = 70,971,623.16/12,900.92
  6. Step 6: Final answer
    x = 5,501.28

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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.