Home / 13,261.22-18,300.11-7,292.88

Finding the Fourth Proportional to 13,261.22, 18,300.11 and 7,292.88

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Solution

The fourth proportional to 13,261.22, 18,300.11 and 7,292.88 is: 10,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.22 : 18,300.11 = 7,292.88 : x
  2. Step 2: Convert to fraction form
    13,261.22/18,300.11 = 7,292.88/x
  3. Step 3: Cross multiply
    13,261.22x = 18,300.11 × 7,292.88
  4. Step 4: Simplify right side
    13,261.22x = 133,460,569.08
  5. Step 5: Solve for x
    x = 133,460,569.08/13,261.22
  6. Step 6: Final answer
    x = 10,063.98

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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.