Home / 13,673.91-20,510.16-5,355.45

Finding the Fourth Proportional to 13,673.91, 20,510.16 and 5,355.45

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Solution

The fourth proportional to 13,673.91, 20,510.16 and 5,355.45 is: 8,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.91 : 20,510.16 = 5,355.45 : x
  2. Step 2: Convert to fraction form
    13,673.91/20,510.16 = 5,355.45/x
  3. Step 3: Cross multiply
    13,673.91x = 20,510.16 × 5,355.45
  4. Step 4: Simplify right side
    13,673.91x = 109,841,136.37
  5. Step 5: Solve for x
    x = 109,841,136.37/13,673.91
  6. Step 6: Final answer
    x = 8,032.90

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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.