Home / 15,795.26-21,789.59-9,417.35

Finding the Fourth Proportional to 15,795.26, 21,789.59 and 9,417.35

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Solution

The fourth proportional to 15,795.26, 21,789.59 and 9,417.35 is: 12,991.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,795.26 : 21,789.59 = 9,417.35 : x
  2. Step 2: Convert to fraction form
    15,795.26/21,789.59 = 9,417.35/x
  3. Step 3: Cross multiply
    15,795.26x = 21,789.59 × 9,417.35
  4. Step 4: Simplify right side
    15,795.26x = 205,200,202.77
  5. Step 5: Solve for x
    x = 205,200,202.77/15,795.26
  6. Step 6: Final answer
    x = 12,991.25

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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.