Home / 12,924.14-19,385.13-5,130.86

Finding the Fourth Proportional to 12,924.14, 19,385.13 and 5,130.86

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Solution

The fourth proportional to 12,924.14, 19,385.13 and 5,130.86 is: 7,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.14 : 19,385.13 = 5,130.86 : x
  2. Step 2: Convert to fraction form
    12,924.14/19,385.13 = 5,130.86/x
  3. Step 3: Cross multiply
    12,924.14x = 19,385.13 × 5,130.86
  4. Step 4: Simplify right side
    12,924.14x = 99,462,388.11
  5. Step 5: Solve for x
    x = 99,462,388.11/12,924.14
  6. Step 6: Final answer
    x = 7,695.86

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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.