Home / 14,447.72-19,907.34-12,858.68

Finding the Fourth Proportional to 14,447.72, 19,907.34 and 12,858.68

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Solution

The fourth proportional to 14,447.72, 19,907.34 and 12,858.68 is: 17,717.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.72 : 19,907.34 = 12,858.68 : x
  2. Step 2: Convert to fraction form
    14,447.72/19,907.34 = 12,858.68/x
  3. Step 3: Cross multiply
    14,447.72x = 19,907.34 × 12,858.68
  4. Step 4: Simplify right side
    14,447.72x = 255,982,114.71
  5. Step 5: Solve for x
    x = 255,982,114.71/14,447.72
  6. Step 6: Final answer
    x = 17,717.82

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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.