Home / 12,934.51-19,388.30-8,774.87

Finding the Fourth Proportional to 12,934.51, 19,388.30 and 8,774.87

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Solution

The fourth proportional to 12,934.51, 19,388.30 and 8,774.87 is: 13,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.51 : 19,388.30 = 8,774.87 : x
  2. Step 2: Convert to fraction form
    12,934.51/19,388.30 = 8,774.87/x
  3. Step 3: Cross multiply
    12,934.51x = 19,388.30 × 8,774.87
  4. Step 4: Simplify right side
    12,934.51x = 170,129,671.21
  5. Step 5: Solve for x
    x = 170,129,671.21/12,934.51
  6. Step 6: Final answer
    x = 13,153.16

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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.