Home / 13,858.59-19,125.55-8,479.34

Finding the Fourth Proportional to 13,858.59, 19,125.55 and 8,479.34

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Solution

The fourth proportional to 13,858.59, 19,125.55 and 8,479.34 is: 11,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.59 : 19,125.55 = 8,479.34 : x
  2. Step 2: Convert to fraction form
    13,858.59/19,125.55 = 8,479.34/x
  3. Step 3: Cross multiply
    13,858.59x = 19,125.55 × 8,479.34
  4. Step 4: Simplify right side
    13,858.59x = 162,171,998.74
  5. Step 5: Solve for x
    x = 162,171,998.74/13,858.59
  6. Step 6: Final answer
    x = 11,701.91

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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.