Home / 13,630.02-18,803.11-7,965

Finding the Fourth Proportional to 13,630.02, 18,803.11 and 7,965

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Solution

The fourth proportional to 13,630.02, 18,803.11 and 7,965 is: 10,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.02 : 18,803.11 = 7,965 : x
  2. Step 2: Convert to fraction form
    13,630.02/18,803.11 = 7,965/x
  3. Step 3: Cross multiply
    13,630.02x = 18,803.11 × 7,965
  4. Step 4: Simplify right side
    13,630.02x = 149,766,771.15
  5. Step 5: Solve for x
    x = 149,766,771.15/13,630.02
  6. Step 6: Final answer
    x = 10,988.01

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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.