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Finding the Fourth Proportional to 12,530.43, 17,291.99 and 6,865.55

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Solution

The fourth proportional to 12,530.43, 17,291.99 and 6,865.55 is: 9,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.43 : 17,291.99 = 6,865.55 : x
  2. Step 2: Convert to fraction form
    12,530.43/17,291.99 = 6,865.55/x
  3. Step 3: Cross multiply
    12,530.43x = 17,291.99 × 6,865.55
  4. Step 4: Simplify right side
    12,530.43x = 118,718,901.16
  5. Step 5: Solve for x
    x = 118,718,901.16/12,530.43
  6. Step 6: Final answer
    x = 9,474.45

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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.