Home / 15,535.06-21,437.88-8,461.42

Finding the Fourth Proportional to 15,535.06, 21,437.88 and 8,461.42

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Solution

The fourth proportional to 15,535.06, 21,437.88 and 8,461.42 is: 11,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.06 : 21,437.88 = 8,461.42 : x
  2. Step 2: Convert to fraction form
    15,535.06/21,437.88 = 8,461.42/x
  3. Step 3: Cross multiply
    15,535.06x = 21,437.88 × 8,461.42
  4. Step 4: Simplify right side
    15,535.06x = 181,394,906.59
  5. Step 5: Solve for x
    x = 181,394,906.59/15,535.06
  6. Step 6: Final answer
    x = 11,676.49

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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.