Home / 13,255.79-19,882.40-4,490.24

Finding the Fourth Proportional to 13,255.79, 19,882.40 and 4,490.24

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Solution

The fourth proportional to 13,255.79, 19,882.40 and 4,490.24 is: 6,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.79 : 19,882.40 = 4,490.24 : x
  2. Step 2: Convert to fraction form
    13,255.79/19,882.40 = 4,490.24/x
  3. Step 3: Cross multiply
    13,255.79x = 19,882.40 × 4,490.24
  4. Step 4: Simplify right side
    13,255.79x = 89,276,625.91
  5. Step 5: Solve for x
    x = 89,276,625.91/13,255.79
  6. Step 6: Final answer
    x = 6,734.92

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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.