Home / 14,425.47-19,907.51-8,138.25

Finding the Fourth Proportional to 14,425.47, 19,907.51 and 8,138.25

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Solution

The fourth proportional to 14,425.47, 19,907.51 and 8,138.25 is: 11,230.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.47 : 19,907.51 = 8,138.25 : x
  2. Step 2: Convert to fraction form
    14,425.47/19,907.51 = 8,138.25/x
  3. Step 3: Cross multiply
    14,425.47x = 19,907.51 × 8,138.25
  4. Step 4: Simplify right side
    14,425.47x = 162,012,252.57
  5. Step 5: Solve for x
    x = 162,012,252.57/14,425.47
  6. Step 6: Final answer
    x = 11,230.99

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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.