Home / 15,311.29-21,134.91-9,023.25

Finding the Fourth Proportional to 15,311.29, 21,134.91 and 9,023.25

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Solution

The fourth proportional to 15,311.29, 21,134.91 and 9,023.25 is: 12,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.29 : 21,134.91 = 9,023.25 : x
  2. Step 2: Convert to fraction form
    15,311.29/21,134.91 = 9,023.25/x
  3. Step 3: Cross multiply
    15,311.29x = 21,134.91 × 9,023.25
  4. Step 4: Simplify right side
    15,311.29x = 190,705,531.54
  5. Step 5: Solve for x
    x = 190,705,531.54/15,311.29
  6. Step 6: Final answer
    x = 12,455.22

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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.