Home / 12,830.68-17,702.58-7,525.72

Finding the Fourth Proportional to 12,830.68, 17,702.58 and 7,525.72

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Solution

The fourth proportional to 12,830.68, 17,702.58 and 7,525.72 is: 10,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.68 : 17,702.58 = 7,525.72 : x
  2. Step 2: Convert to fraction form
    12,830.68/17,702.58 = 7,525.72/x
  3. Step 3: Cross multiply
    12,830.68x = 17,702.58 × 7,525.72
  4. Step 4: Simplify right side
    12,830.68x = 133,224,660.36
  5. Step 5: Solve for x
    x = 133,224,660.36/12,830.68
  6. Step 6: Final answer
    x = 10,383.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.