Home / 15,814.70-21,826.48-9,100.20

Finding the Fourth Proportional to 15,814.70, 21,826.48 and 9,100.20

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Solution

The fourth proportional to 15,814.70, 21,826.48 and 9,100.20 is: 12,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.70 : 21,826.48 = 9,100.20 : x
  2. Step 2: Convert to fraction form
    15,814.70/21,826.48 = 9,100.20/x
  3. Step 3: Cross multiply
    15,814.70x = 21,826.48 × 9,100.20
  4. Step 4: Simplify right side
    15,814.70x = 198,625,333.30
  5. Step 5: Solve for x
    x = 198,625,333.30/15,814.70
  6. Step 6: Final answer
    x = 12,559.54

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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.