Home / 13,396.40-18,488.07-7,429.23

Finding the Fourth Proportional to 13,396.40, 18,488.07 and 7,429.23

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Solution

The fourth proportional to 13,396.40, 18,488.07 and 7,429.23 is: 10,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.40 : 18,488.07 = 7,429.23 : x
  2. Step 2: Convert to fraction form
    13,396.40/18,488.07 = 7,429.23/x
  3. Step 3: Cross multiply
    13,396.40x = 18,488.07 × 7,429.23
  4. Step 4: Simplify right side
    13,396.40x = 137,352,124.29
  5. Step 5: Solve for x
    x = 137,352,124.29/13,396.40
  6. Step 6: Final answer
    x = 10,252.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.