Home / 9,918.45-14,861.48-8,266.05

Finding the Fourth Proportional to 9,918.45, 14,861.48 and 8,266.05

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Solution

The fourth proportional to 9,918.45, 14,861.48 and 8,266.05 is: 12,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.45 : 14,861.48 = 8,266.05 : x
  2. Step 2: Convert to fraction form
    9,918.45/14,861.48 = 8,266.05/x
  3. Step 3: Cross multiply
    9,918.45x = 14,861.48 × 8,266.05
  4. Step 4: Simplify right side
    9,918.45x = 122,845,695.42
  5. Step 5: Solve for x
    x = 122,845,695.42/9,918.45
  6. Step 6: Final answer
    x = 12,385.57

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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.