Home / 12,408.37-17,116.61-7,624.99

Finding the Fourth Proportional to 12,408.37, 17,116.61 and 7,624.99

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Solution

The fourth proportional to 12,408.37, 17,116.61 and 7,624.99 is: 10,518.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.37 : 17,116.61 = 7,624.99 : x
  2. Step 2: Convert to fraction form
    12,408.37/17,116.61 = 7,624.99/x
  3. Step 3: Cross multiply
    12,408.37x = 17,116.61 × 7,624.99
  4. Step 4: Simplify right side
    12,408.37x = 130,513,894.50
  5. Step 5: Solve for x
    x = 130,513,894.50/12,408.37
  6. Step 6: Final answer
    x = 10,518.22

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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.