Home / 12,429.36-18,647.28-5,502.24

Finding the Fourth Proportional to 12,429.36, 18,647.28 and 5,502.24

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Solution

The fourth proportional to 12,429.36, 18,647.28 and 5,502.24 is: 8,254.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.36 : 18,647.28 = 5,502.24 : x
  2. Step 2: Convert to fraction form
    12,429.36/18,647.28 = 5,502.24/x
  3. Step 3: Cross multiply
    12,429.36x = 18,647.28 × 5,502.24
  4. Step 4: Simplify right side
    12,429.36x = 102,601,809.91
  5. Step 5: Solve for x
    x = 102,601,809.91/12,429.36
  6. Step 6: Final answer
    x = 8,254.79

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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.