Home / 12,665.11-19,038.67-11,752.04

Finding the Fourth Proportional to 12,665.11, 19,038.67 and 11,752.04

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Solution

The fourth proportional to 12,665.11, 19,038.67 and 11,752.04 is: 17,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665.11 : 19,038.67 = 11,752.04 : x
  2. Step 2: Convert to fraction form
    12,665.11/19,038.67 = 11,752.04/x
  3. Step 3: Cross multiply
    12,665.11x = 19,038.67 × 11,752.04
  4. Step 4: Simplify right side
    12,665.11x = 223,743,155.56
  5. Step 5: Solve for x
    x = 223,743,155.56/12,665.11
  6. Step 6: Final answer
    x = 17,666.11

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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.