Home / 12,690.45-19,032.03-4,370.13

Finding the Fourth Proportional to 12,690.45, 19,032.03 and 4,370.13

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Solution

The fourth proportional to 12,690.45, 19,032.03 and 4,370.13 is: 6,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.45 : 19,032.03 = 4,370.13 : x
  2. Step 2: Convert to fraction form
    12,690.45/19,032.03 = 4,370.13/x
  3. Step 3: Cross multiply
    12,690.45x = 19,032.03 × 4,370.13
  4. Step 4: Simplify right side
    12,690.45x = 83,172,445.26
  5. Step 5: Solve for x
    x = 83,172,445.26/12,690.45
  6. Step 6: Final answer
    x = 6,553.94

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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.