Home / 12,617.04-17,408.88-7,311.54

Finding the Fourth Proportional to 12,617.04, 17,408.88 and 7,311.54

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Solution

The fourth proportional to 12,617.04, 17,408.88 and 7,311.54 is: 10,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617.04 : 17,408.88 = 7,311.54 : x
  2. Step 2: Convert to fraction form
    12,617.04/17,408.88 = 7,311.54/x
  3. Step 3: Cross multiply
    12,617.04x = 17,408.88 × 7,311.54
  4. Step 4: Simplify right side
    12,617.04x = 127,285,722.48
  5. Step 5: Solve for x
    x = 127,285,722.48/12,617.04
  6. Step 6: Final answer
    x = 10,088.40

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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.