Home / 15,786.25-21,779.44-10,124.06

Finding the Fourth Proportional to 15,786.25, 21,779.44 and 10,124.06

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Solution

The fourth proportional to 15,786.25, 21,779.44 and 10,124.06 is: 13,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.25 : 21,779.44 = 10,124.06 : x
  2. Step 2: Convert to fraction form
    15,786.25/21,779.44 = 10,124.06/x
  3. Step 3: Cross multiply
    15,786.25x = 21,779.44 × 10,124.06
  4. Step 4: Simplify right side
    15,786.25x = 220,496,374.70
  5. Step 5: Solve for x
    x = 220,496,374.70/15,786.25
  6. Step 6: Final answer
    x = 13,967.62

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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.