Home / 12,586.64-17,370.42-8,330.36

Finding the Fourth Proportional to 12,586.64, 17,370.42 and 8,330.36

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Solution

The fourth proportional to 12,586.64, 17,370.42 and 8,330.36 is: 11,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.64 : 17,370.42 = 8,330.36 : x
  2. Step 2: Convert to fraction form
    12,586.64/17,370.42 = 8,330.36/x
  3. Step 3: Cross multiply
    12,586.64x = 17,370.42 × 8,330.36
  4. Step 4: Simplify right side
    12,586.64x = 144,701,851.95
  5. Step 5: Solve for x
    x = 144,701,851.95/12,586.64
  6. Step 6: Final answer
    x = 11,496.46

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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.