Home / 13,057.79-19,586.03-4,292.78

Finding the Fourth Proportional to 13,057.79, 19,586.03 and 4,292.78

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Solution

The fourth proportional to 13,057.79, 19,586.03 and 4,292.78 is: 6,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.79 : 19,586.03 = 4,292.78 : x
  2. Step 2: Convert to fraction form
    13,057.79/19,586.03 = 4,292.78/x
  3. Step 3: Cross multiply
    13,057.79x = 19,586.03 × 4,292.78
  4. Step 4: Simplify right side
    13,057.79x = 84,078,398.47
  5. Step 5: Solve for x
    x = 84,078,398.47/13,057.79
  6. Step 6: Final answer
    x = 6,438.95

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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.