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Finding the Fourth Proportional to 12,630.13, 18,923.63 and 7,080.01

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Solution

The fourth proportional to 12,630.13, 18,923.63 and 7,080.01 is: 10,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.13 : 18,923.63 = 7,080.01 : x
  2. Step 2: Convert to fraction form
    12,630.13/18,923.63 = 7,080.01/x
  3. Step 3: Cross multiply
    12,630.13x = 18,923.63 × 7,080.01
  4. Step 4: Simplify right side
    12,630.13x = 133,979,406.93
  5. Step 5: Solve for x
    x = 133,979,406.93/12,630.13
  6. Step 6: Final answer
    x = 10,607.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.