Home / 13,266.90-18,305.01-8,545.50

Finding the Fourth Proportional to 13,266.90, 18,305.01 and 8,545.50

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Solution

The fourth proportional to 13,266.90, 18,305.01 and 8,545.50 is: 11,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.90 : 18,305.01 = 8,545.50 : x
  2. Step 2: Convert to fraction form
    13,266.90/18,305.01 = 8,545.50/x
  3. Step 3: Cross multiply
    13,266.90x = 18,305.01 × 8,545.50
  4. Step 4: Simplify right side
    13,266.90x = 156,425,462.96
  5. Step 5: Solve for x
    x = 156,425,462.96/13,266.90
  6. Step 6: Final answer
    x = 11,790.66

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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.