Home / 12,748.94-19,123.64-4,429.23

Finding the Fourth Proportional to 12,748.94, 19,123.64 and 4,429.23

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Solution

The fourth proportional to 12,748.94, 19,123.64 and 4,429.23 is: 6,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.94 : 19,123.64 = 4,429.23 : x
  2. Step 2: Convert to fraction form
    12,748.94/19,123.64 = 4,429.23/x
  3. Step 3: Cross multiply
    12,748.94x = 19,123.64 × 4,429.23
  4. Step 4: Simplify right side
    12,748.94x = 84,703,055.23
  5. Step 5: Solve for x
    x = 84,703,055.23/12,748.94
  6. Step 6: Final answer
    x = 6,643.93

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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.