Home / 13,440.63-18,548.33-8,068.35

Finding the Fourth Proportional to 13,440.63, 18,548.33 and 8,068.35

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Solution

The fourth proportional to 13,440.63, 18,548.33 and 8,068.35 is: 11,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.63 : 18,548.33 = 8,068.35 : x
  2. Step 2: Convert to fraction form
    13,440.63/18,548.33 = 8,068.35/x
  3. Step 3: Cross multiply
    13,440.63x = 18,548.33 × 8,068.35
  4. Step 4: Simplify right side
    13,440.63x = 149,654,378.01
  5. Step 5: Solve for x
    x = 149,654,378.01/13,440.63
  6. Step 6: Final answer
    x = 11,134.48

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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.