Home / 12,934.64-19,402.08-5,145.44

Finding the Fourth Proportional to 12,934.64, 19,402.08 and 5,145.44

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Solution

The fourth proportional to 12,934.64, 19,402.08 and 5,145.44 is: 7,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.64 : 19,402.08 = 5,145.44 : x
  2. Step 2: Convert to fraction form
    12,934.64/19,402.08 = 5,145.44/x
  3. Step 3: Cross multiply
    12,934.64x = 19,402.08 × 5,145.44
  4. Step 4: Simplify right side
    12,934.64x = 99,832,238.52
  5. Step 5: Solve for x
    x = 99,832,238.52/12,934.64
  6. Step 6: Final answer
    x = 7,718.21

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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.