Home / 13,506.89-20,266.40-8,575.21

Finding the Fourth Proportional to 13,506.89, 20,266.40 and 8,575.21

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Solution

The fourth proportional to 13,506.89, 20,266.40 and 8,575.21 is: 12,866.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.89 : 20,266.40 = 8,575.21 : x
  2. Step 2: Convert to fraction form
    13,506.89/20,266.40 = 8,575.21/x
  3. Step 3: Cross multiply
    13,506.89x = 20,266.40 × 8,575.21
  4. Step 4: Simplify right side
    13,506.89x = 173,788,593.07
  5. Step 5: Solve for x
    x = 173,788,593.07/13,506.89
  6. Step 6: Final answer
    x = 12,866.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.