Home / 12,266.80-16,902.14-8,280.99

Finding the Fourth Proportional to 12,266.80, 16,902.14 and 8,280.99

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Solution

The fourth proportional to 12,266.80, 16,902.14 and 8,280.99 is: 11,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,266.80 : 16,902.14 = 8,280.99 : x
  2. Step 2: Convert to fraction form
    12,266.80/16,902.14 = 8,280.99/x
  3. Step 3: Cross multiply
    12,266.80x = 16,902.14 × 8,280.99
  4. Step 4: Simplify right side
    12,266.80x = 139,966,410.91
  5. Step 5: Solve for x
    x = 139,966,410.91/12,266.80
  6. Step 6: Final answer
    x = 11,410.18

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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.