Home / 12,904.84-17,815.26-9,130.96

Finding the Fourth Proportional to 12,904.84, 17,815.26 and 9,130.96

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Solution

The fourth proportional to 12,904.84, 17,815.26 and 9,130.96 is: 12,605.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.84 : 17,815.26 = 9,130.96 : x
  2. Step 2: Convert to fraction form
    12,904.84/17,815.26 = 9,130.96/x
  3. Step 3: Cross multiply
    12,904.84x = 17,815.26 × 9,130.96
  4. Step 4: Simplify right side
    12,904.84x = 162,670,426.45
  5. Step 5: Solve for x
    x = 162,670,426.45/12,904.84
  6. Step 6: Final answer
    x = 12,605.38

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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.