Home / 13,029.44-19,399.18-12,845.40

Finding the Fourth Proportional to 13,029.44, 19,399.18 and 12,845.40

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Solution

The fourth proportional to 13,029.44, 19,399.18 and 12,845.40 is: 19,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.44 : 19,399.18 = 12,845.40 : x
  2. Step 2: Convert to fraction form
    13,029.44/19,399.18 = 12,845.40/x
  3. Step 3: Cross multiply
    13,029.44x = 19,399.18 × 12,845.40
  4. Step 4: Simplify right side
    13,029.44x = 249,190,226.77
  5. Step 5: Solve for x
    x = 249,190,226.77/13,029.44
  6. Step 6: Final answer
    x = 19,125.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.