Home / 12,937.08-19,407.78-4,172.88

Finding the Fourth Proportional to 12,937.08, 19,407.78 and 4,172.88

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Solution

The fourth proportional to 12,937.08, 19,407.78 and 4,172.88 is: 6,260.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.08 : 19,407.78 = 4,172.88 : x
  2. Step 2: Convert to fraction form
    12,937.08/19,407.78 = 4,172.88/x
  3. Step 3: Cross multiply
    12,937.08x = 19,407.78 × 4,172.88
  4. Step 4: Simplify right side
    12,937.08x = 80,986,337.01
  5. Step 5: Solve for x
    x = 80,986,337.01/12,937.08
  6. Step 6: Final answer
    x = 6,260.02

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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.