Home / 12,529.72-17,293.08-9,539.92

Finding the Fourth Proportional to 12,529.72, 17,293.08 and 9,539.92

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Solution

The fourth proportional to 12,529.72, 17,293.08 and 9,539.92 is: 13,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.72 : 17,293.08 = 9,539.92 : x
  2. Step 2: Convert to fraction form
    12,529.72/17,293.08 = 9,539.92/x
  3. Step 3: Cross multiply
    12,529.72x = 17,293.08 × 9,539.92
  4. Step 4: Simplify right side
    12,529.72x = 164,974,599.75
  5. Step 5: Solve for x
    x = 164,974,599.75/12,529.72
  6. Step 6: Final answer
    x = 13,166.66

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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.