Home / 13,408.58-18,491.72-8,373.26

Finding the Fourth Proportional to 13,408.58, 18,491.72 and 8,373.26

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Solution

The fourth proportional to 13,408.58, 18,491.72 and 8,373.26 is: 11,547.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.58 : 18,491.72 = 8,373.26 : x
  2. Step 2: Convert to fraction form
    13,408.58/18,491.72 = 8,373.26/x
  3. Step 3: Cross multiply
    13,408.58x = 18,491.72 × 8,373.26
  4. Step 4: Simplify right side
    13,408.58x = 154,835,979.41
  5. Step 5: Solve for x
    x = 154,835,979.41/13,408.58
  6. Step 6: Final answer
    x = 11,547.53

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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.