Home / 13,498.49-20,247.76-6,921.08

Finding the Fourth Proportional to 13,498.49, 20,247.76 and 6,921.08

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Solution

The fourth proportional to 13,498.49, 20,247.76 and 6,921.08 is: 10,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498.49 : 20,247.76 = 6,921.08 : x
  2. Step 2: Convert to fraction form
    13,498.49/20,247.76 = 6,921.08/x
  3. Step 3: Cross multiply
    13,498.49x = 20,247.76 × 6,921.08
  4. Step 4: Simplify right side
    13,498.49x = 140,136,366.78
  5. Step 5: Solve for x
    x = 140,136,366.78/13,498.49
  6. Step 6: Final answer
    x = 10,381.63

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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.