Home / 15,291.29-21,101.82-9,322.58

Finding the Fourth Proportional to 15,291.29, 21,101.82 and 9,322.58

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Solution

The fourth proportional to 15,291.29, 21,101.82 and 9,322.58 is: 12,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.29 : 21,101.82 = 9,322.58 : x
  2. Step 2: Convert to fraction form
    15,291.29/21,101.82 = 9,322.58/x
  3. Step 3: Cross multiply
    15,291.29x = 21,101.82 × 9,322.58
  4. Step 4: Simplify right side
    15,291.29x = 196,723,405.10
  5. Step 5: Solve for x
    x = 196,723,405.10/15,291.29
  6. Step 6: Final answer
    x = 12,865.06

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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.