Home / 15,575.40-21,493.78-8,501.80

Finding the Fourth Proportional to 15,575.40, 21,493.78 and 8,501.80

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Solution

The fourth proportional to 15,575.40, 21,493.78 and 8,501.80 is: 11,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.40 : 21,493.78 = 8,501.80 : x
  2. Step 2: Convert to fraction form
    15,575.40/21,493.78 = 8,501.80/x
  3. Step 3: Cross multiply
    15,575.40x = 21,493.78 × 8,501.80
  4. Step 4: Simplify right side
    15,575.40x = 182,735,818.80
  5. Step 5: Solve for x
    x = 182,735,818.80/15,575.40
  6. Step 6: Final answer
    x = 11,732.34

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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.