Home / 16,813.40-25,212.80-5,717.12

Finding the Fourth Proportional to 16,813.40, 25,212.80 and 5,717.12

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Solution

The fourth proportional to 16,813.40, 25,212.80 and 5,717.12 is: 8,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.40 : 25,212.80 = 5,717.12 : x
  2. Step 2: Convert to fraction form
    16,813.40/25,212.80 = 5,717.12/x
  3. Step 3: Cross multiply
    16,813.40x = 25,212.80 × 5,717.12
  4. Step 4: Simplify right side
    16,813.40x = 144,144,603.14
  5. Step 5: Solve for x
    x = 144,144,603.14/16,813.40
  6. Step 6: Final answer
    x = 8,573.20

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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.