Home / 12,718.16-19,077.84-6,149.87

Finding the Fourth Proportional to 12,718.16, 19,077.84 and 6,149.87

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Solution

The fourth proportional to 12,718.16, 19,077.84 and 6,149.87 is: 9,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.16 : 19,077.84 = 6,149.87 : x
  2. Step 2: Convert to fraction form
    12,718.16/19,077.84 = 6,149.87/x
  3. Step 3: Cross multiply
    12,718.16x = 19,077.84 × 6,149.87
  4. Step 4: Simplify right side
    12,718.16x = 117,326,140.49
  5. Step 5: Solve for x
    x = 117,326,140.49/12,718.16
  6. Step 6: Final answer
    x = 9,225.09

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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.