Home / 12,328.77-16,993.70-9,635.25

Finding the Fourth Proportional to 12,328.77, 16,993.70 and 9,635.25

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Solution

The fourth proportional to 12,328.77, 16,993.70 and 9,635.25 is: 13,281.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.77 : 16,993.70 = 9,635.25 : x
  2. Step 2: Convert to fraction form
    12,328.77/16,993.70 = 9,635.25/x
  3. Step 3: Cross multiply
    12,328.77x = 16,993.70 × 9,635.25
  4. Step 4: Simplify right side
    12,328.77x = 163,738,499.75
  5. Step 5: Solve for x
    x = 163,738,499.75/12,328.77
  6. Step 6: Final answer
    x = 13,281.01

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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.