Home / 13,408.56-18,523.35-9,891.14

Finding the Fourth Proportional to 13,408.56, 18,523.35 and 9,891.14

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Solution

The fourth proportional to 13,408.56, 18,523.35 and 9,891.14 is: 13,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.56 : 18,523.35 = 9,891.14 : x
  2. Step 2: Convert to fraction form
    13,408.56/18,523.35 = 9,891.14/x
  3. Step 3: Cross multiply
    13,408.56x = 18,523.35 × 9,891.14
  4. Step 4: Simplify right side
    13,408.56x = 183,216,955.50
  5. Step 5: Solve for x
    x = 183,216,955.50/13,408.56
  6. Step 6: Final answer
    x = 13,664.18

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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.